80021264 has 40 divisors (see below), whose sum is σ = 158864832. Its totient is φ = 39035520.

The previous prime is 80021257. The next prime is 80021281. The reversal of 80021264 is 46212008.

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, 158837 + ... + 159339.

Almost surely, 2^80021264 is an apocalyptic number.

It is an amenable number.

80021264 is a deficient number, since it is larger than the sum of its proper divisors (78843568).

80021264 is a wasteful number, since it uses less digits than its factorization.

80021264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 80021264 is about 8945.4605247578. The cubic root of 80021264 is about 430.9251112071.

The spelling of 80021264 in words is "eighty million, twenty-one thousand, two hundred sixty-four".