45499520 has 128 divisors (see below), whose sum is σ = 124260480. Its totient is φ = 15769600.

The previous prime is 45499507. The next prime is 45499567. The reversal of 45499520 is 2599454.

It is a tau number, because it is divible by the number of its divisors (128).

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, 161780 + ... + 162060.

It is an arithmetic number, because the mean of its divisors is an integer number (970785).

Almost surely, 2^45499520 is an apocalyptic number.

45499520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45499520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62130240).

45499520 is an abundant number, since it is smaller than the sum of its proper divisors (78760960).

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

45499520 is a wasteful number, since it uses less digits than its factorization.

45499520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 45499520 is about 6745.3332015550. Note that the first 3 decimals coincide. The cubic root of 45499520 is about 357.0005937005. Note that the first 3 decimals are identical.

The spelling of 45499520 in words is "forty-five million, four hundred ninety-nine thousand, five hundred twenty".