45644382 has 48 divisors (see below), whose sum is σ = 115346400. Its totient is φ = 13039488.

The previous prime is 45644363. The next prime is 45644393. The reversal of 45644382 is 28344654.

45644382 is a `hidden beast` number, since 4 + 5 + 644 + 3 + 8 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2478 + ... + 9870.

It is an arithmetic number, because the mean of its divisors is an integer number (2403050).

Almost surely, 2^45644382 is an apocalyptic number.

45644382 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45644382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57673200).

45644382 is an abundant number, since it is smaller than the sum of its proper divisors (69702018).

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

45644382 is a wasteful number, since it uses less digits than its factorization.

45644382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422 (or 7405 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 45644382 is about 6756.0626107223. The cubic root of 45644382 is about 357.3790667948.

The spelling of 45644382 in words is "forty-five million, six hundred forty-four thousand, three hundred eighty-two".