1072867264 has 28 divisors (see below), whose sum is σ = 2433110704. Its totient is φ = 459800064.

The previous prime is 1072867247. The next prime is 1072867277. The reversal of 1072867264 is 4627682701.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1072867264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196949 + ... + 1197844.

Almost surely, 2^1072867264 is an apocalyptic number.

1072867264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1072867264 is an abundant number, since it is smaller than the sum of its proper divisors (1360243440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1072867264 is an equidigital number, since it uses as much as digits as its factorization.

1072867264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394812 (or 2394802 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 1072867264 is about 32754.6525550188. The cubic root of 1072867264 is about 1023.7219093482.

The spelling of 1072867264 in words is "one billion, seventy-two million, eight hundred sixty-seven thousand, two hundred sixty-four".