720507460 has 12 divisors (see below), whose sum is σ = 1513065708. Its totient is φ = 288202976.

The previous prime is 720507457. The next prime is 720507497. The reversal of 720507460 is 64705027.

It can be written as a sum of positive squares in 2 ways, for example, as 572836356 + 147671104 = 23934^2 + 12152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18012667 + ... + 18012706.

It is an arithmetic number, because the mean of its divisors is an integer number (126088809).

Almost surely, 2^720507460 is an apocalyptic number.

It is an amenable number.

720507460 is an abundant number, since it is smaller than the sum of its proper divisors (792558248).

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

720507460 is a wasteful number, since it uses less digits than its factorization.

720507460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36025382 (or 36025380 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 720507460 is about 26842.2700232302. The cubic root of 720507460 is about 896.4914677918.

The spelling of 720507460 in words is "seven hundred twenty million, five hundred seven thousand, four hundred sixty".