45205732 has 24 divisors (see below), whose sum is σ = 92941632. Its totient is φ = 18967200.

The previous prime is 45205729. The next prime is 45205733. The reversal of 45205732 is 23750254.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 45205732.

It is not an unprimeable number, because it can be changed into a prime (45205733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38944 + ... + 40087.

It is an arithmetic number, because the mean of its divisors is an integer number (3872568).

Almost surely, 2^45205732 is an apocalyptic number.

It is an amenable number.

45205732 is an abundant number, since it is smaller than the sum of its proper divisors (47735900).

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

45205732 is a wasteful number, since it uses less digits than its factorization.

45205732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79059 (or 79057 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 45205732 is about 6723.5208038646. The cubic root of 45205732 is about 356.2305559512.

Adding to 45205732 its reverse (23750254), we get a palindrome (68955986).

The spelling of 45205732 in words is "forty-five million, two hundred five thousand, seven hundred thirty-two".