45921132 has 36 divisors (see below), whose sum is σ = 116372256. Its totient is φ = 15268320.

The previous prime is 45921121. The next prime is 45921173. The reversal of 45921132 is 23112954.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×45921132² = 4217500728322848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45921096 and 45921105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15213 + ... + 17979.

Almost surely, 2^45921132 is an apocalyptic number.

It is an amenable number.

45921132 is an abundant number, since it is smaller than the sum of its proper divisors (70451124).

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

45921132 is a wasteful number, since it uses less digits than its factorization.

45921132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238 (or 3233 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 45921132 is about 6776.5132627333. The cubic root of 45921132 is about 358.0998961781.

The spelling of 45921132 in words is "forty-five million, nine hundred twenty-one thousand, one hundred thirty-two".