71630416 has 40 divisors (see below), whose sum is σ = 163052064. Its totient is φ = 30053760.

The previous prime is 71630387. The next prime is 71630431. The reversal of 71630416 is 61403617.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

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, 13366 + ... + 17941.

Almost surely, 2^71630416 is an apocalyptic number.

It is an amenable number.

71630416 is an abundant number, since it is smaller than the sum of its proper divisors (91421648).

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

71630416 is a wasteful number, since it uses less digits than its factorization.

71630416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31339 (or 31333 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 71630416 is about 8463.4754090740. The cubic root of 71630416 is about 415.3037230824.

The spelling of 71630416 in words is "seventy-one million, six hundred thirty thousand, four hundred sixteen".