103313440 has 48 divisors (see below), whose sum is σ = 250047000. Its totient is φ = 40314880.

The previous prime is 103313389. The next prime is 103313453. The reversal of 103313440 is 44313301.

It can be written as a sum of positive squares in 4 ways, for example, as 24245776 + 79067664 = 4924^2 + 8892^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315 + ... + 14434.

Almost surely, 2^103313440 is an apocalyptic number.

103313440 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 103313440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125023500).

103313440 is an abundant number, since it is smaller than the sum of its proper divisors (146733560).

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

103313440 is a wasteful number, since it uses less digits than its factorization.

103313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15805 (or 15797 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 103313440 is about 10164.3219154059. The cubic root of 103313440 is about 469.2298235774.

Adding to 103313440 its reverse (44313301), we get a palindrome (147626741).

The spelling of 103313440 in words is "one hundred three million, three hundred thirteen thousand, four hundred forty".