709742464 has 48 divisors (see below), whose sum is σ = 1478426760. Its totient is φ = 338750720.

The previous prime is 709742461. The next prime is 709742471. The reversal of 709742464 is 464247907.

It is a self number, because there is not a number n which added to its sum of digits gives 709742464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709742461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1445259 + ... + 1445749.

Almost surely, 2^709742464 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 709742464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739213380).

709742464 is an abundant number, since it is smaller than the sum of its proper divisors (768684296).

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

709742464 is an frugal number, since it uses more digits than its factorization.

709742464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 709742464 is about 26640.9921737161. The cubic root of 709742464 is about 892.0042630857.

The spelling of 709742464 in words is "seven hundred nine million, seven hundred forty-two thousand, four hundred sixty-four".