107388990 has 56 divisors (see below), whose sum is σ = 289837368. Its totient is φ = 28635120.

The previous prime is 107388989. The next prime is 107388997. The reversal of 107388990 is 99883701.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107388997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 76 + ... + 14655.

Almost surely, 2^107388990 is an apocalyptic number.

107388990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 107388990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144918684).

107388990 is an abundant number, since it is smaller than the sum of its proper divisors (182448378).

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

107388990 is an equidigital number, since it uses as much as digits as its factorization.

107388990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14756 (or 14741 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 107388990 is about 10362.8659163380. The cubic root of 107388990 is about 475.3205444876.

The spelling of 107388990 in words is "one hundred seven million, three hundred eighty-eight thousand, nine hundred ninety".