78264026 has 16 divisors (see below), whose sum is σ = 122266368. Its totient is φ = 37531200.

The previous prime is 78264007. The next prime is 78264041. The reversal of 78264026 is 62046287.

It is a super-2 number, since 2×78264026² = 12250515531457352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421 + ... + 12591.

It is an arithmetic number, because the mean of its divisors is an integer number (7641648).

Almost surely, 2^78264026 is an apocalyptic number.

78264026 is a deficient number, since it is larger than the sum of its proper divisors (44002342).

78264026 is a wasteful number, since it uses less digits than its factorization.

78264026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11317.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 78264026 is about 8846.6957673473. The cubic root of 78264026 is about 427.7474162568.

The spelling of 78264026 in words is "seventy-eight million, two hundred sixty-four thousand, twenty-six".