45811992 has 32 divisors (see below), whose sum is σ = 114954480. Its totient is φ = 15214080.

The previous prime is 45811979. The next prime is 45811993. The reversal of 45811992 is 29911854.

It is a super-2 number, since 2×45811992² = 4197477222016128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45811992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45811993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3348 + ... + 10140.

Almost surely, 2^45811992 is an apocalyptic number.

It is an amenable number.

45811992 is an abundant number, since it is smaller than the sum of its proper divisors (69142488).

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

45811992 is a wasteful number, since it uses less digits than its factorization.

45811992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083 (or 7079 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 45811992 is about 6768.4556584202. The cubic root of 45811992 is about 357.8159744150.

The spelling of 45811992 in words is "forty-five million, eight hundred eleven thousand, nine hundred ninety-two".