71940160 has 28 divisors (see below), whose sum is σ = 171308268. Its totient is φ = 28775936.

The previous prime is 71940157. The next prime is 71940191. The reversal of 71940160 is 6104917.

It can be written as a sum of positive squares in 2 ways, for example, as 46457856 + 25482304 = 6816^2 + 5048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112087 + ... + 112726.

Almost surely, 2^71940160 is an apocalyptic number.

It is an amenable number.

71940160 is an abundant number, since it is smaller than the sum of its proper divisors (99368108).

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

71940160 is a wasteful number, since it uses less digits than its factorization.

71940160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224830 (or 224820 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 71940160 is about 8481.7545354720. The cubic root of 71940160 is about 415.9014806147.

The spelling of 71940160 in words is "seventy-one million, nine hundred forty thousand, one hundred sixty".