80042904 has 80 divisors (see below), whose sum is σ = 226599120. Its totient is φ = 26395200.

The previous prime is 80042891. The next prime is 80042917. The reversal of 80042904 is 40924008.

It is an interprime number because it is at equal distance from previous prime (80042891) and next prime (80042917).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64837 + ... + 66059.

It is an arithmetic number, because the mean of its divisors is an integer number (2832489).

Almost surely, 2^80042904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80042904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113299560).

80042904 is an abundant number, since it is smaller than the sum of its proper divisors (146556216).

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

80042904 is a wasteful number, since it uses less digits than its factorization.

80042904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 80042904 is about 8946.6699950317. The cubic root of 80042904 is about 430.9639524620.

The spelling of 80042904 in words is "eighty million, forty-two thousand, nine hundred four".