80422978 has 16 divisors (see below), whose sum is σ = 125648064. Its totient is φ = 38571120.

The previous prime is 80422963. The next prime is 80422987. The reversal of 80422978 is 87922408.

It is a self number, because there is not a number n which added to its sum of digits gives 80422978.

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, 2400 + ... + 12907.

It is an arithmetic number, because the mean of its divisors is an integer number (7853004).

Almost surely, 2^80422978 is an apocalyptic number.

80422978 is a deficient number, since it is larger than the sum of its proper divisors (45225086).

80422978 is a wasteful number, since it uses less digits than its factorization.

80422978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15417.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 80422978 is about 8967.8859270176. The cubic root of 80422978 is about 431.6450022834.

The spelling of 80422978 in words is "eighty million, four hundred twenty-two thousand, nine hundred seventy-eight".