80402378 has 16 divisors (see below), whose sum is σ = 140434560. Its totient is φ = 33807696.

The previous prime is 80402341. The next prime is 80402417. The reversal of 80402378 is 87320408.

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, 53438 + ... + 54921.

It is an arithmetic number, because the mean of its divisors is an integer number (8777160).

Almost surely, 2^80402378 is an apocalyptic number.

80402378 is a deficient number, since it is larger than the sum of its proper divisors (60032182).

80402378 is a wasteful number, since it uses less digits than its factorization.

80402378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108421.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 80402378 is about 8966.7373107502. The cubic root of 80402378 is about 431.6081444659.

The spelling of 80402378 in words is "eighty million, four hundred two thousand, three hundred seventy-eight".