45159732 has 72 divisors (see below), whose sum is σ = 121517760. Its totient is φ = 14100480.

The previous prime is 45159707. The next prime is 45159733. The reversal of 45159732 is 23795154.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45159733) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 70132 + ... + 70772.

Almost surely, 2^45159732 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 45159732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60758880).

45159732 is an abundant number, since it is smaller than the sum of its proper divisors (76358028).

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

45159732 is a wasteful number, since it uses less digits than its factorization.

45159732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 768 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 45159732 is about 6720.0991064120. The cubic root of 45159732 is about 356.1096850928.

The spelling of 45159732 in words is "forty-five million, one hundred fifty-nine thousand, seven hundred thirty-two".