82241978 has 16 divisors (see below), whose sum is σ = 151831680. Its totient is φ = 32535216.

The previous prime is 82241959. The next prime is 82241981. The reversal of 82241978 is 87914228.

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, 225758 + ... + 226121.

It is an arithmetic number, because the mean of its divisors is an integer number (9489480).

Almost surely, 2^82241978 is an apocalyptic number.

82241978 is a deficient number, since it is larger than the sum of its proper divisors (69589702).

82241978 is a wasteful number, since it uses less digits than its factorization.

82241978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451901.

The product of its digits is 64512, while the sum is 41.

The square root of 82241978 is about 9068.7362956478. The cubic root of 82241978 is about 434.8750740044.

The spelling of 82241978 in words is "eighty-two million, two hundred forty-one thousand, nine hundred seventy-eight".