45720832 has 18 divisors (see below), whose sum is σ = 91263578. Its totient is φ = 22860288.

The previous prime is 45720827. The next prime is 45720839. The reversal of 45720832 is 23802754.

It can be written as a sum of positive squares in only one way, i.e., 34857216 + 10863616 = 5904^2 + 3296^2 .

It is a super-3 number, since 3×45720832³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45720794 and 45720803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45720839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89043 + ... + 89554.

Almost surely, 2^45720832 is an apocalyptic number.

It is an amenable number.

45720832 is a deficient number, since it is larger than the sum of its proper divisors (45542746).

45720832 is an equidigital number, since it uses as much as digits as its factorization.

45720832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178613 (or 178599 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 45720832 is about 6761.7181248555. The cubic root of 45720832 is about 357.5784808222.

The spelling of 45720832 in words is "forty-five million, seven hundred twenty thousand, eight hundred thirty-two".