90120932 has 12 divisors (see below), whose sum is σ = 172049136. Its totient is φ = 40964040.

The previous prime is 90120913. The next prime is 90120941. The reversal of 90120932 is 23902109.

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, 1024058 + ... + 1024145.

It is an arithmetic number, because the mean of its divisors is an integer number (14337428).

Almost surely, 2^90120932 is an apocalyptic number.

It is an amenable number.

90120932 is a deficient number, since it is larger than the sum of its proper divisors (81928204).

90120932 is a wasteful number, since it uses less digits than its factorization.

90120932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048218 (or 2048216 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 90120932 is about 9493.2045169163. The cubic root of 90120932 is about 448.3411052796.

The spelling of 90120932 in words is "ninety million, one hundred twenty thousand, nine hundred thirty-two".