2261042564 has 24 divisors (see below), whose sum is σ = 4317818400. Its totient is φ = 1027441280.

The previous prime is 2261042561. The next prime is 2261042587. The reversal of 2261042564 is 4652401622.

It is a super-2 number, since 2×2261042564² = 10224626952439388192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261042564.

It is not an unprimeable number, because it can be changed into a prime (2261042561) 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, 215267 + ... + 225525.

It is an arithmetic number, because the mean of its divisors is an integer number (179909100).

Almost surely, 2^2261042564 is an apocalyptic number.

It is an amenable number.

2261042564 is a deficient number, since it is larger than the sum of its proper divisors (2056775836).

2261042564 is a wasteful number, since it uses less digits than its factorization.

2261042564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15283 (or 15281 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 2261042564 is about 47550.4212809939. The cubic root of 2261042564 is about 1312.5108815303.

The spelling of 2261042564 in words is "two billion, two hundred sixty-one million, forty-two thousand, five hundred sixty-four".