103315440 has 80 divisors (see below), whose sum is σ = 324720288. Its totient is φ = 27168768.

The previous prime is 103315439. The next prime is 103315451. The reversal of 103315440 is 44513301.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14572 + ... + 20468.

Almost surely, 2^103315440 is an apocalyptic number.

103315440 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 103315440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162360144).

103315440 is an abundant number, since it is smaller than the sum of its proper divisors (221404848).

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

103315440 is a wasteful number, since it uses less digits than its factorization.

103315440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986 (or 5980 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 103315440 is about 10164.4202982757. The cubic root of 103315440 is about 469.2328514299.

Adding to 103315440 its reverse (44513301), we get a palindrome (147828741).

The spelling of 103315440 in words is "one hundred three million, three hundred fifteen thousand, four hundred forty".