71922680 has 48 divisors (see below), whose sum is σ = 164385720. Its totient is φ = 28320512.

The previous prime is 71922667. The next prime is 71922701. The reversal of 71922680 is 8622917.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71922680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316727 + ... + 316953.

Almost surely, 2^71922680 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 71922680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82192860).

71922680 is an abundant number, since it is smaller than the sum of its proper divisors (92463040).

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

71922680 is a wasteful number, since it uses less digits than its factorization.

71922680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 71922680 is about 8480.7240256950. The cubic root of 71922680 is about 415.8677926775.

The spelling of 71922680 in words is "seventy-one million, nine hundred twenty-two thousand, six hundred eighty".