71504048 has 80 divisors (see below), whose sum is σ = 174465024. Its totient is φ = 27578880.

The previous prime is 71504039. The next prime is 71504051. The reversal of 71504048 is 84040517.

It is a super-2 number, since 2×71504048² = 10225657760772608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71504048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156236 + ... + 156692.

Almost surely, 2^71504048 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 71504048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87232512).

71504048 is an abundant number, since it is smaller than the sum of its proper divisors (102960976).

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

71504048 is a wasteful number, since it uses less digits than its factorization.

71504048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 71504048 is about 8456.0066225140. The cubic root of 71504048 is about 415.0593576489.

The spelling of 71504048 in words is "seventy-one million, five hundred four thousand, forty-eight".