78274008 has 48 divisors (see below), whose sum is σ = 218836800. Its totient is φ = 25248960.

The previous prime is 78273989. The next prime is 78274019. The reversal of 78274008 is 80047287.

It is a super-2 number, since 2×78274008² = 12253640656768128, 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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15303 + ... + 19766.

It is an arithmetic number, because the mean of its divisors is an integer number (4559100).

Almost surely, 2^78274008 is an apocalyptic number.

It is an amenable number.

78274008 is an abundant number, since it is smaller than the sum of its proper divisors (140562792).

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

78274008 is a wasteful number, since it uses less digits than its factorization.

78274008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35112 (or 35105 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 78274008 is about 8847.2599147985. The cubic root of 78274008 is about 427.7656008278.

The spelling of 78274008 in words is "seventy-eight million, two hundred seventy-four thousand, eight".