71560740 has 24 divisors (see below), whose sum is σ = 200370240. Its totient is φ = 19082848.

The previous prime is 71560739. The next prime is 71560781. The reversal of 71560740 is 4706517.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 71560698 and 71560707.

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, 596280 + ... + 596399.

It is an arithmetic number, because the mean of its divisors is an integer number (8348760).

Almost surely, 2^71560740 is an apocalyptic number.

It is an amenable number.

71560740 is an abundant number, since it is smaller than the sum of its proper divisors (128809500).

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

71560740 is a wasteful number, since it uses less digits than its factorization.

71560740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192691 (or 1192689 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 71560740 is about 8459.3581316788. The cubic root of 71560740 is about 415.1690219722.

The spelling of 71560740 in words is "seventy-one million, five hundred sixty thousand, seven hundred forty".