72752464 has 20 divisors (see below), whose sum is σ = 143619156. Its totient is φ = 35689472.

The previous prime is 72752453. The next prime is 72752467. The reversal of 72752464 is 46425727.

It can be written as a sum of positive squares in 2 ways, for example, as 63872064 + 8880400 = 7992^2 + 2980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72752467) 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 3 ways as a sum of consecutive naturals, for example, 42049 + ... + 43744.

Almost surely, 2^72752464 is an apocalyptic number.

It is an amenable number.

72752464 is a deficient number, since it is larger than the sum of its proper divisors (70866692).

72752464 is a wasteful number, since it uses less digits than its factorization.

72752464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85854 (or 85848 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The square root of 72752464 is about 8529.5054956310. The cubic root of 72752464 is about 417.4609934036.

The spelling of 72752464 in words is "seventy-two million, seven hundred fifty-two thousand, four hundred sixty-four".