72744574 has 32 divisors (see below), whose sum is σ = 128134656. Its totient is φ = 30330720.

The previous prime is 72744533. The next prime is 72744577. The reversal of 72744574 is 47544727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72744577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87549 + ... + 88375.

It is an arithmetic number, because the mean of its divisors is an integer number (4004208).

Almost surely, 2^72744574 is an apocalyptic number.

72744574 is a deficient number, since it is larger than the sum of its proper divisors (55390082).

72744574 is a wasteful number, since it uses less digits than its factorization.

72744574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its digits is 219520, while the sum is 40.

The square root of 72744574 is about 8529.0429709317. The cubic root of 72744574 is about 417.4459016521.

The spelling of 72744574 in words is "seventy-two million, seven hundred forty-four thousand, five hundred seventy-four".