45522820 has 24 divisors (see below), whose sum is σ = 109255104. Its totient is φ = 15607776.

The previous prime is 45522817. The next prime is 45522823. The reversal of 45522820 is 2822554.

It is an interprime number because it is at equal distance from previous prime (45522817) and next prime (45522823).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (45522823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162442 + ... + 162721.

It is an arithmetic number, because the mean of its divisors is an integer number (4552296).

Almost surely, 2^45522820 is an apocalyptic number.

It is an amenable number.

45522820 is an abundant number, since it is smaller than the sum of its proper divisors (63732284).

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

45522820 is a wasteful number, since it uses less digits than its factorization.

45522820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325179 (or 325177 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 45522820 is about 6747.0601005179. The cubic root of 45522820 is about 357.0615225071.

The spelling of 45522820 in words is "forty-five million, five hundred twenty-two thousand, eight hundred twenty".