72463744 has 32 divisors (see below), whose sum is σ = 144780840. Its totient is φ = 36126720.

The previous prime is 72463733. The next prime is 72463747. The reversal of 72463744 is 44736427.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72463747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62272 + ... + 63424.

Almost surely, 2^72463744 is an apocalyptic number.

It is an amenable number.

72463744 is a deficient number, since it is larger than the sum of its proper divisors (72317096).

72463744 is a wasteful number, since it uses less digits than its factorization.

72463744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1646 counting only the distinct ones).

The product of its digits is 112896, while the sum is 37.

The square root of 72463744 is about 8512.5638910965. The cubic root of 72463744 is about 416.9080264199.

The spelling of 72463744 in words is "seventy-two million, four hundred sixty-three thousand, seven hundred forty-four".