45017892 has 18 divisors (see below), whose sum is σ = 113795318. Its totient is φ = 15005952.

The previous prime is 45017881. The next prime is 45017899. The reversal of 45017892 is 29871054.

It can be written as a sum of positive squares in only one way, i.e., 44836416 + 181476 = 6696^2 + 426^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×45017892² = 4053221200247328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1250497 = 45017892 / (4 + 5 + 0 + 1 + 7 + 8 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (45017899) 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, 625213 + ... + 625284.

Almost surely, 2^45017892 is an apocalyptic number.

It is an amenable number.

45017892 is an abundant number, since it is smaller than the sum of its proper divisors (68777426).

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

45017892 is a wasteful number, since it uses less digits than its factorization.

45017892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250507 (or 1250502 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 45017892 is about 6709.5373909086. The cubic root of 45017892 is about 355.7364648953.

The spelling of 45017892 in words is "forty-five million, seventeen thousand, eight hundred ninety-two".