71340740 has 24 divisors (see below), whose sum is σ = 150101952. Its totient is φ = 28481760.

The previous prime is 71340739. The next prime is 71340743. The reversal of 71340740 is 4704317.

It is not an unprimeable number, because it can be changed into a prime (71340743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8297 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (6254248).

Almost surely, 2^71340740 is an apocalyptic number.

It is an amenable number.

71340740 is an abundant number, since it is smaller than the sum of its proper divisors (78761212).

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

71340740 is a wasteful number, since it uses less digits than its factorization.

71340740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827 (or 6825 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 71340740 is about 8446.3447715565. The cubic root of 71340740 is about 414.7431322796.

The spelling of 71340740 in words is "seventy-one million, three hundred forty thousand, seven hundred forty".