108431392 has 12 divisors (see below), whose sum is σ = 213474366. Its totient is φ = 54215680.

The previous prime is 108431369. The next prime is 108431399. The reversal of 108431392 is 293134801.

It can be written as a sum of positive squares in only one way, i.e., 104121616 + 4309776 = 10204^2 + 2076^2 .

It is not an unprimeable number, because it can be changed into a prime (108431399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694209 + ... + 1694272.

Almost surely, 2^108431392 is an apocalyptic number.

It is an amenable number.

108431392 is a deficient number, since it is larger than the sum of its proper divisors (105042974).

108431392 is an equidigital number, since it uses as much as digits as its factorization.

108431392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388491 (or 3388483 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 108431392 is about 10413.0395178353. The cubic root of 108431392 is about 476.8535399992.

The spelling of 108431392 in words is "one hundred eight million, four hundred thirty-one thousand, three hundred ninety-two".