45447892 has 18 divisors (see below), whose sum is σ = 92519322. Its totient is φ = 19477584.

The previous prime is 45447887. The next prime is 45447893. The reversal of 45447892 is 29874454.

It can be written as a sum of positive squares in only one way, i.e., 39513796 + 5934096 = 6286^2 + 2436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45447893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115743 + ... + 116134.

Almost surely, 2^45447892 is an apocalyptic number.

It is an amenable number.

45447892 is an abundant number, since it is smaller than the sum of its proper divisors (47071430).

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

45447892 is a wasteful number, since it uses less digits than its factorization.

45447892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231895 (or 231886 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 45447892 is about 6741.5051731791. The cubic root of 45447892 is about 356.8655138703.

The spelling of 45447892 in words is "forty-five million, four hundred forty-seven thousand, eight hundred ninety-two".