103216340 has 48 divisors (see below), whose sum is σ = 223134912. Its totient is φ = 40083456.

The previous prime is 103216339. The next prime is 103216343. The reversal of 103216340 is 43612301.

It is a super-2 number, since 2×103216340² = 21307225685991200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103216343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220787 + ... + 221253.

It is an arithmetic number, because the mean of its divisors is an integer number (4648644).

Almost surely, 2^103216340 is an apocalyptic number.

103216340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103216340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111567456).

103216340 is an abundant number, since it is smaller than the sum of its proper divisors (119918572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103216340 is a wasteful number, since it uses less digits than its factorization.

With its successor (103216341) it forms an eRAP, since the sums of their prime factors are consecutive (776 and 777).

103216340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 103216340 is about 10159.5442811181. The cubic root of 103216340 is about 469.0827743089.

Adding to 103216340 its reverse (43612301), we get a palindrome (146828641).

It can be divided in two parts, 10321 and 6340, that added together give a palindrome (16661).

The spelling of 103216340 in words is "one hundred three million, two hundred sixteen thousand, three hundred forty".