45721724 has 24 divisors (see below), whose sum is σ = 83025600. Its totient is φ = 22014720.

The previous prime is 45721691. The next prime is 45721727. The reversal of 45721724 is 42712754.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45721727) 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, 11192 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (3459400).

Almost surely, 2^45721724 is an apocalyptic number.

It is an amenable number.

45721724 is a deficient number, since it is larger than the sum of its proper divisors (37303876).

45721724 is a wasteful number, since it uses less digits than its factorization.

45721724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653 (or 3651 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 45721724 is about 6761.7840841009. The cubic root of 45721724 is about 357.5808062241.

The spelling of 45721724 in words is "forty-five million, seven hundred twenty-one thousand, seven hundred twenty-four".