45631488 has 96 divisors (see below), whose sum is σ = 139164480. Its totient is φ = 13025280.

The previous prime is 45631459. The next prime is 45631499. The reversal of 45631488 is 88413654.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42478 + ... + 43538.

It is an arithmetic number, because the mean of its divisors is an integer number (1449630).

Almost surely, 2^45631488 is an apocalyptic number.

45631488 is a gapful number since it is divisible by the number (48) 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 45631488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69582240).

45631488 is an abundant number, since it is smaller than the sum of its proper divisors (93532992).

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

45631488 is a wasteful number, since it uses less digits than its factorization.

45631488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 1073 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 45631488 is about 6755.1082892874. The cubic root of 45631488 is about 357.3454118340.

The spelling of 45631488 in words is "forty-five million, six hundred thirty-one thousand, four hundred eighty-eight".