45147432 has 64 divisors (see below), whose sum is σ = 127396800. Its totient is φ = 13207040.

The previous prime is 45147397. The next prime is 45147451. The reversal of 45147432 is 23474154.

It is a self number, because there is not a number n which added to its sum of digits gives 45147432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4708 + ... + 10604.

It is an arithmetic number, because the mean of its divisors is an integer number (1990575).

Almost surely, 2^45147432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45147432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63698400).

45147432 is an abundant number, since it is smaller than the sum of its proper divisors (82249368).

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

45147432 is a wasteful number, since it uses less digits than its factorization.

45147432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946 (or 5942 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 45147432 is about 6719.1838790139. The cubic root of 45147432 is about 356.0773513694.

The spelling of 45147432 in words is "forty-five million, one hundred forty-seven thousand, four hundred thirty-two".