260740290 has 32 divisors (see below), whose sum is σ = 633703680. Its totient is φ = 68649984.

The previous prime is 260740289. The next prime is 260740309. The reversal of 260740290 is 92047062.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52639 + ... + 57378.

It is an arithmetic number, because the mean of its divisors is an integer number (19803240).

Almost surely, 2^260740290 is an apocalyptic number.

260740290 is an abundant number, since it is smaller than the sum of its proper divisors (372963390).

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

260740290 is a wasteful number, since it uses less digits than its factorization.

260740290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110106.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 260740290 is about 16147.4545981712. The cubic root of 260740290 is about 638.8556128128.

The spelling of 260740290 in words is "two hundred sixty million, seven hundred forty thousand, two hundred ninety".