80976440 has 32 divisors (see below), whose sum is σ = 192916080. Its totient is φ = 30484992.

The previous prime is 80976419. The next prime is 80976443. The reversal of 80976440 is 4467908.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80976394 and 80976403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80976443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58862 + ... + 60221.

Almost surely, 2^80976440 is an apocalyptic number.

It is an amenable number.

80976440 is an abundant number, since it is smaller than the sum of its proper divisors (111939640).

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

80976440 is a wasteful number, since it uses less digits than its factorization.

80976440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119111 (or 119107 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 80976440 is about 8998.6910159200. The cubic root of 80976440 is about 432.6329171479.

The spelling of 80976440 in words is "eighty million, nine hundred seventy-six thousand, four hundred forty".