72264512 has 14 divisors (see below), whose sum is σ = 143400018. Its totient is φ = 36132224.

The previous prime is 72264499. The next prime is 72264541. The reversal of 72264512 is 21546227.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 57395776 + 14868736 = 7576^2 + 3856^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 564503 + ... + 564630.

Almost surely, 2^72264512 is an apocalyptic number.

It is an amenable number.

72264512 is a deficient number, since it is larger than the sum of its proper divisors (71135506).

72264512 is a wasteful number, since it uses less digits than its factorization.

72264512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129145 (or 1129135 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 72264512 is about 8500.8536041976. The cubic root of 72264512 is about 416.5255930589.

The spelling of 72264512 in words is "seventy-two million, two hundred sixty-four thousand, five hundred twelve".