264721372 has 6 divisors (see below), whose sum is σ = 463262408. Its totient is φ = 132360684.

The previous prime is 264721351. The next prime is 264721393. The reversal of 264721372 is 273127462.

It is an interprime number because it is at equal distance from previous prime (264721351) and next prime (264721393).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33090168 + ... + 33090175.

Almost surely, 2^264721372 is an apocalyptic number.

It is an amenable number.

264721372 is a deficient number, since it is larger than the sum of its proper divisors (198541036).

264721372 is a wasteful number, since it uses less digits than its factorization.

264721372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66180347 (or 66180345 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 264721372 is about 16270.2603544012. The cubic root of 264721372 is about 642.0906339694.

The spelling of 264721372 in words is "two hundred sixty-four million, seven hundred twenty-one thousand, three hundred seventy-two".