80372644 has 12 divisors (see below), whose sum is σ = 153438768. Its totient is φ = 36533000.

The previous prime is 80372629. The next prime is 80372647. The reversal of 80372644 is 44627308.

It is not an unprimeable number, because it can be changed into a prime (80372647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913282 + ... + 913369.

It is an arithmetic number, because the mean of its divisors is an integer number (12786564).

Almost surely, 2^80372644 is an apocalyptic number.

It is an amenable number.

80372644 is a deficient number, since it is larger than the sum of its proper divisors (73066124).

80372644 is a wasteful number, since it uses less digits than its factorization.

80372644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826666 (or 1826664 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 80372644 is about 8965.0791407550. The cubic root of 80372644 is about 431.5549328602.

The spelling of 80372644 in words is "eighty million, three hundred seventy-two thousand, six hundred forty-four".