78274760 has 32 divisors (see below), whose sum is σ = 178752960. Its totient is φ = 30841536.

The previous prime is 78274751. The next prime is 78274771. The reversal of 78274760 is 6747287.

It is a super-2 number, since 2×78274760² = 12253876106115200, 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, 11924 + ... + 17283.

It is an arithmetic number, because the mean of its divisors is an integer number (5586030).

Almost surely, 2^78274760 is an apocalyptic number.

It is an amenable number.

78274760 is an abundant number, since it is smaller than the sum of its proper divisors (100478200).

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

78274760 is a wasteful number, since it uses less digits than its factorization.

78274760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29285 (or 29281 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 78274760 is about 8847.3024137304. The cubic root of 78274760 is about 427.7669707108.

The spelling of 78274760 in words is "seventy-eight million, two hundred seventy-four thousand, seven hundred sixty".