45338920 has 32 divisors (see below), whose sum is σ = 111287520. Its totient is φ = 16486720.

The previous prime is 45338897. The next prime is 45338933. The reversal of 45338920 is 2983354.

It is a happy number.

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, 51082 + ... + 51961.

It is an arithmetic number, because the mean of its divisors is an integer number (3477735).

Almost surely, 2^45338920 is an apocalyptic number.

45338920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45338920 is an abundant number, since it is smaller than the sum of its proper divisors (65948600).

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

45338920 is a wasteful number, since it uses less digits than its factorization.

45338920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103065 (or 103061 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 45338920 is about 6733.4181512810. The cubic root of 45338920 is about 356.5800626290.

The spelling of 45338920 in words is "forty-five million, three hundred thirty-eight thousand, nine hundred twenty".