652307290 has 16 divisors (see below), whose sum is σ = 1176226920. Its totient is φ = 260462080.

The previous prime is 652307287. The next prime is 652307321. The reversal of 652307290 is 92703256.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 506115009 + 146192281 = 22497^2 + 12091^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51631 + ... + 63010.

Almost surely, 2^652307290 is an apocalyptic number.

652307290 is a deficient number, since it is larger than the sum of its proper divisors (523919630).

652307290 is a wasteful number, since it uses less digits than its factorization.

652307290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115217.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 652307290 is about 25540.3071633839. The cubic root of 652307290 is about 867.2628512930.

The spelling of 652307290 in words is "six hundred fifty-two million, three hundred seven thousand, two hundred ninety".