80021376 has 48 divisors (see below), whose sum is σ = 230273160. Its totient is φ = 26673408.

The previous prime is 80021317. The next prime is 80021377. The reversal of 80021376 is 67312008.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80021377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33580 + ... + 35883.

Almost surely, 2^80021376 is an apocalyptic number.

It is an amenable number.

80021376 is an abundant number, since it is smaller than the sum of its proper divisors (150251784).

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

80021376 is a wasteful number, since it uses less digits than its factorization.

80021376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69483 (or 69468 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 80021376 is about 8945.4667849140. The cubic root of 80021376 is about 430.9253122520.

The spelling of 80021376 in words is "eighty million, twenty-one thousand, three hundred seventy-six".