80401856 has 14 divisors (see below), whose sum is σ = 159547560. Its totient is φ = 40200896.

The previous prime is 80401847. The next prime is 80401883. The reversal of 80401856 is 65810408.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628076 + ... + 628203.

Almost surely, 2^80401856 is an apocalyptic number.

It is an amenable number.

80401856 is a deficient number, since it is larger than the sum of its proper divisors (79145704).

80401856 is a wasteful number, since it uses less digits than its factorization.

80401856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256291 (or 1256281 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 80401856 is about 8966.7082031256. The cubic root of 80401856 is about 431.6072104141.

The spelling of 80401856 in words is "eighty million, four hundred one thousand, eight hundred fifty-six".