45457320 has 64 divisors (see below), whose sum is σ = 144400320. Its totient is φ = 11408384.

The previous prime is 45457273. The next prime is 45457331. The reversal of 45457320 is 2375454.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9102 + ... + 13181.

It is an arithmetic number, because the mean of its divisors is an integer number (2256255).

Almost surely, 2^45457320 is an apocalyptic number.

45457320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45457320 is an abundant number, since it is smaller than the sum of its proper divisors (98943000).

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

45457320 is a wasteful number, since it uses less digits than its factorization.

45457320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22314 (or 22310 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 45457320 is about 6742.2043872906. The cubic root of 45457320 is about 356.8901889820.

The spelling of 45457320 in words is "forty-five million, four hundred fifty-seven thousand, three hundred twenty".