80381972 has 12 divisors (see below), whose sum is σ = 153456576. Its totient is φ = 36537240.

The previous prime is 80381969. The next prime is 80382031. The reversal of 80381972 is 27918308.

It is a super-2 number, since 2×80381972² = 12922522845217568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 913388 + ... + 913475.

It is an arithmetic number, because the mean of its divisors is an integer number (12788048).

Almost surely, 2^80381972 is an apocalyptic number.

It is an amenable number.

80381972 is a deficient number, since it is larger than the sum of its proper divisors (73074604).

80381972 is a wasteful number, since it uses less digits than its factorization.

80381972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826878 (or 1826876 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 80381972 is about 8965.5993664674. The cubic root of 80381972 is about 431.5716275484.

The spelling of 80381972 in words is "eighty million, three hundred eighty-one thousand, nine hundred seventy-two".