260008690 has 8 divisors (see below), whose sum is σ = 468015660. Its totient is φ = 104003472.

The previous prime is 260008633. The next prime is 260008703. The reversal of 260008690 is 96800062.

It can be written as a sum of positive squares in 2 ways, for example, as 259757689 + 251001 = 16117^2 + 501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×260008690² = 135209037751032200, which contains 22 as substring.

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, 13000425 + ... + 13000444.

Almost surely, 2^260008690 is an apocalyptic number.

260008690 is a deficient number, since it is larger than the sum of its proper divisors (208006970).

260008690 is a wasteful number, since it uses less digits than its factorization.

260008690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26000876.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 260008690 is about 16124.7849598064. The cubic root of 260008690 is about 638.2575405712.

The spelling of 260008690 in words is "two hundred sixty million, eight thousand, six hundred ninety".