260190581 has 8 divisors (see below), whose sum is σ = 307614720. Its totient is φ = 215329968.

The previous prime is 260190571. The next prime is 260190587. The reversal of 260190581 is 185091062.

260190581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 260190581 - 2⁶ = 260190517 is a prime.

It is a super-2 number, since 2×260190581² = 135398276882235122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260190587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640661 + ... + 641066.

It is an arithmetic number, because the mean of its divisors is an integer number (38451840).

Almost surely, 2^260190581 is an apocalyptic number.

It is an amenable number.

260190581 is a deficient number, since it is larger than the sum of its proper divisors (47424139).

260190581 is a wasteful number, since it uses less digits than its factorization.

260190581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281763.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 260190581 is about 16130.4240799800. The cubic root of 260190581 is about 638.4063384716.

The spelling of 260190581 in words is "two hundred sixty million, one hundred ninety thousand, five hundred eighty-one".