2560690 has 16 divisors (see below), whose sum is σ = 5028480. Its totient is φ = 931120.

The previous prime is 2560669. The next prime is 2560697. The reversal of 2560690 is 960652.

2560690 = T₄₉₆ + T₄₉₇ + ... + T₅₁₅.

It is a super-2 number, since 2×2560690² = 13114266552200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2560697) 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, 11530 + ... + 11749.

It is an arithmetic number, because the mean of its divisors is an integer number (314280).

2^2560690 is an apocalyptic number.

2560690 is a deficient number, since it is larger than the sum of its proper divisors (2467790).

2560690 is a wasteful number, since it uses less digits than its factorization.

2560690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23297.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2560690 is about 1600.2156104725. The cubic root of 2560690 is about 136.8103650822.

The spelling of 2560690 in words is "two million, five hundred sixty thousand, six hundred ninety".