713031220 has 36 divisors (see below), whose sum is σ = 1645870212. Its totient is φ = 259283200.

The previous prime is 713031191. The next prime is 713031227. The reversal of 713031220 is 22130317.

It can be written as a sum of positive squares in 2 ways, for example, as 182466064 + 530565156 = 13508^2 + 23034^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713031227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144901 + ... + 149740.

It is an arithmetic number, because the mean of its divisors is an integer number (45718617).

Almost surely, 2^713031220 is an apocalyptic number.

It is an amenable number.

713031220 is an abundant number, since it is smaller than the sum of its proper divisors (932838992).

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

713031220 is a wasteful number, since it uses less digits than its factorization.

713031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294672 (or 294659 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 713031220 is about 26702.6444383323. The cubic root of 713031220 is about 893.3799098881.

Adding to 713031220 its reverse (22130317), we get a palindrome (735161537).

The spelling of 713031220 in words is "seven hundred thirteen million, thirty-one thousand, two hundred twenty".