71280748 has 24 divisors (see below), whose sum is σ = 155522304. Its totient is φ = 27771600.

The previous prime is 71280721. The next prime is 71280751. The reversal of 71280748 is 84708217.

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, 115408 + ... + 116023.

It is an arithmetic number, because the mean of its divisors is an integer number (6480096).

Almost surely, 2^71280748 is an apocalyptic number.

It is an amenable number.

71280748 is an abundant number, since it is smaller than the sum of its proper divisors (84241556).

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

71280748 is a wasteful number, since it uses less digits than its factorization.

71280748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231453 (or 231451 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 71280748 is about 8442.7926659370. The cubic root of 71280748 is about 414.6268441313.

The spelling of 71280748 in words is "seventy-one million, two hundred eighty thousand, seven hundred forty-eight".