80021944 has 32 divisors (see below), whose sum is σ = 154872000. Its totient is φ = 38742912.

The previous prime is 80021927. The next prime is 80021957. The reversal of 80021944 is 44912008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32302 + ... + 34690.

It is an arithmetic number, because the mean of its divisors is an integer number (4839750).

Almost surely, 2^80021944 is an apocalyptic number.

It is an amenable number.

80021944 is a deficient number, since it is larger than the sum of its proper divisors (74850056).

80021944 is a wasteful number, since it uses less digits than its factorization.

80021944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527 (or 2523 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 80021944 is about 8945.4985327817. The cubic root of 80021944 is about 430.9263318337.

The spelling of 80021944 in words is "eighty million, twenty-one thousand, nine hundred forty-four".