71430570 has 24 divisors (see below), whose sum is σ = 185719716. Its totient is φ = 19048128.

The previous prime is 71430559. The next prime is 71430581. The reversal of 71430570 is 7503417.

It is an interprime number because it is at equal distance from previous prime (71430559) and next prime (71430581).

It can be written as a sum of positive squares in 2 ways, for example, as 61826769 + 9603801 = 7863^2 + 3099^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396747 + ... + 396926.

Almost surely, 2^71430570 is an apocalyptic number.

71430570 is an abundant number, since it is smaller than the sum of its proper divisors (114289146).

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

71430570 is a wasteful number, since it uses less digits than its factorization.

71430570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793686 (or 793683 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 71430570 is about 8451.6607835383. The cubic root of 71430570 is about 414.9171364048.

Adding to 71430570 its reverse (7503417), we get a palindrome (78933987).

The spelling of 71430570 in words is "seventy-one million, four hundred thirty thousand, five hundred seventy".