78422080 has 56 divisors (see below), whose sum is σ = 203728320. Its totient is φ = 28515840.

The previous prime is 78422077. The next prime is 78422087. The reversal of 78422080 is 8022487.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78422087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7620 + ... + 14659.

Almost surely, 2^78422080 is an apocalyptic number.

It is an amenable number.

78422080 is an abundant number, since it is smaller than the sum of its proper divisors (125306240).

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

78422080 is a wasteful number, since it uses less digits than its factorization.

78422080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307 (or 22297 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 78422080 is about 8855.6242016021. The cubic root of 78422080 is about 428.0351675764.

The spelling of 78422080 in words is "seventy-eight million, four hundred twenty-two thousand, eighty".