80542976 has 72 divisors (see below), whose sum is σ = 175375200. Its totient is φ = 36771840.

The previous prime is 80542939. The next prime is 80543003. The reversal of 80542976 is 67924508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140771 + ... + 141341.

Almost surely, 2^80542976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80542976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87687600).

80542976 is an abundant number, since it is smaller than the sum of its proper divisors (94832224).

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

80542976 is a wasteful number, since it uses less digits than its factorization.

80542976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 80542976 is about 8974.5738617496. The cubic root of 80542976 is about 431.8595794187.

It can be divided in two parts, 80542 and 976, that added together give a palindrome (81518).

The spelling of 80542976 in words is "eighty million, five hundred forty-two thousand, nine hundred seventy-six".