80400252 has 24 divisors (see below), whose sum is σ = 188847232. Its totient is φ = 26622000.

The previous prime is 80400233. The next prime is 80400263. The reversal of 80400252 is 25200408.

It is a congruent number.

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, 20374 + ... + 23997.

Almost surely, 2^80400252 is an apocalyptic number.

It is an amenable number.

80400252 is an abundant number, since it is smaller than the sum of its proper divisors (108446980).

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

80400252 is a wasteful number, since it uses less digits than its factorization.

80400252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44529 (or 44527 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 80400252 is about 8966.6187607147. The cubic root of 80400252 is about 431.6043402376.

The spelling of 80400252 in words is "eighty million, four hundred thousand, two hundred fifty-two".