45299720 has 32 divisors (see below), whose sum is σ = 102124800. Its totient is φ = 18084288.

The previous prime is 45299717. The next prime is 45299741. The reversal of 45299720 is 2799254.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30761 + ... + 32199.

It is an arithmetic number, because the mean of its divisors is an integer number (3191400).

Almost surely, 2^45299720 is an apocalyptic number.

45299720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45299720 is an abundant number, since it is smaller than the sum of its proper divisors (56825080).

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

45299720 is a wasteful number, since it uses less digits than its factorization.

45299720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237 (or 2233 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 45299720 is about 6730.5066674063. The cubic root of 45299720 is about 356.4772667027.

The spelling of 45299720 in words is "forty-five million, two hundred ninety-nine thousand, seven hundred twenty".