80120256 has 28 divisors (see below), whose sum is σ = 211985352. Its totient is φ = 26706688.

The previous prime is 80120239. The next prime is 80120263. The reversal of 80120256 is 65202108.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208455 + ... + 208838.

Almost surely, 2^80120256 is an apocalyptic number.

It is an amenable number.

80120256 is an abundant number, since it is smaller than the sum of its proper divisors (131865096).

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

80120256 is a wasteful number, since it uses less digits than its factorization.

80120256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417308 (or 417298 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 80120256 is about 8950.9919003427. The cubic root of 80120256 is about 431.1027329965.

It can be divided in two parts, 801 and 20256, that multiplied together give a triangular number (16225056 = T₅₆₉₆).

The spelling of 80120256 in words is "eighty million, one hundred twenty thousand, two hundred fifty-six".