108344640 has 56 divisors (see below), whose sum is σ = 343997280. Its totient is φ = 28891648.

The previous prime is 108344627. The next prime is 108344641. The reversal of 108344640 is 46443801.

It is a super-2 number, since 2×108344640² = 23477122033459200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 108344598 and 108344607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108344641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55470 + ... + 57389.

Almost surely, 2^108344640 is an apocalyptic number.

108344640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108344640 is an abundant number, since it is smaller than the sum of its proper divisors (235652640).

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

108344640 is a wasteful number, since it uses less digits than its factorization.

108344640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112879 (or 112869 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 108344640 is about 10408.8731378570. The cubic root of 108344640 is about 476.7263350303.

The spelling of 108344640 in words is "one hundred eight million, three hundred forty-four thousand, six hundred forty".