78540204 has 24 divisors (see below), whose sum is σ = 194041008. Its totient is φ = 24640000.

The previous prime is 78540139. The next prime is 78540211. The reversal of 78540204 is 40204587.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 192297 + ... + 192704.

It is an arithmetic number, because the mean of its divisors is an integer number (8085042).

Almost surely, 2^78540204 is an apocalyptic number.

It is an amenable number.

78540204 is an abundant number, since it is smaller than the sum of its proper divisors (115500804).

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

78540204 is a wasteful number, since it uses less digits than its factorization.

78540204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385025 (or 385023 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 78540204 is about 8862.2911258884. The cubic root of 78540204 is about 428.2499704366.

The spelling of 78540204 in words is "seventy-eight million, five hundred forty thousand, two hundred four".