109839472 has 20 divisors (see below), whose sum is σ = 220153320. Its totient is φ = 53025728.

The previous prime is 109839469. The next prime is 109839481. The reversal of 109839472 is 274938901.

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, 117898 + ... + 118825.

It is an arithmetic number, because the mean of its divisors is an integer number (11007666).

Almost surely, 2^109839472 is an apocalyptic number.

It is an amenable number.

109839472 is an abundant number, since it is smaller than the sum of its proper divisors (110313848).

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

109839472 is a wasteful number, since it uses less digits than its factorization.

109839472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236760 (or 236754 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 109839472 is about 10480.4328154900. The cubic root of 109839472 is about 478.9087943409.

The spelling of 109839472 in words is "one hundred nine million, eight hundred thirty-nine thousand, four hundred seventy-two".