78270264 has 48 divisors (see below), whose sum is σ = 212732520. Its totient is φ = 25997760.

The previous prime is 78270251. The next prime is 78270287. The reversal of 78270264 is 46207287.

It is a super-2 number, since 2×78270264² = 12252468453259392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20334 + ... + 23874.

Almost surely, 2^78270264 is an apocalyptic number.

It is an amenable number.

78270264 is an abundant number, since it is smaller than the sum of its proper divisors (134462256).

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

78270264 is a wasteful number, since it uses less digits than its factorization.

78270264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 78270264 is about 8847.0483213329. The cubic root of 78270264 is about 427.7587804286.

The spelling of 78270264 in words is "seventy-eight million, two hundred seventy thousand, two hundred sixty-four".