123990932 has 24 divisors (see below), whose sum is σ = 235237632. Its totient is φ = 56844000.

The previous prime is 123990931. The next prime is 123990949. The reversal of 123990932 is 239099321.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123990931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44 + ... + 15747.

It is an arithmetic number, because the mean of its divisors is an integer number (9801568).

Almost surely, 2^123990932 is an apocalyptic number.

It is an amenable number.

123990932 is a deficient number, since it is larger than the sum of its proper divisors (111246700).

123990932 is a wasteful number, since it uses less digits than its factorization.

123990932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15959 (or 15957 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 123990932 is about 11135.1215529962. The cubic root of 123990932 is about 498.6509393444.

The spelling of 123990932 in words is "one hundred twenty-three million, nine hundred ninety thousand, nine hundred thirty-two".