109939988 has 12 divisors (see below), whose sum is σ = 192921792. Its totient is φ = 54819480.

The previous prime is 109939979. The next prime is 109939993. The reversal of 109939988 is 889939901.

It is a super-2 number, since 2×109939988² = 24173601922880288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35978 + ... + 38913.

It is an arithmetic number, because the mean of its divisors is an integer number (16076816).

Almost surely, 2^109939988 is an apocalyptic number.

It is an amenable number.

109939988 is a deficient number, since it is larger than the sum of its proper divisors (82981804).

109939988 is a wasteful number, since it uses less digits than its factorization.

109939988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75262 (or 75260 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 56.

The square root of 109939988 is about 10485.2271315408. The cubic root of 109939988 is about 479.0548357077.

The spelling of 109939988 in words is "one hundred nine million, nine hundred thirty-nine thousand, nine hundred eighty-eight".