71240704 has 44 divisors (see below), whose sum is σ = 147384000. Its totient is φ = 34377728.

The previous prime is 71240669. The next prime is 71240711. The reversal of 71240704 is 40704217.

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, 28497 + ... + 30895.

Almost surely, 2^71240704 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 71240704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73692000).

71240704 is an abundant number, since it is smaller than the sum of its proper divisors (76143296).

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

71240704 is a wasteful number, since it uses less digits than its factorization.

71240704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2430 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 71240704 is about 8440.4208425884. The cubic root of 71240704 is about 414.5491867558.

The spelling of 71240704 in words is "seventy-one million, two hundred forty thousand, seven hundred four".