2261560240 has 20 divisors (see below), whose sum is σ = 5258127744. Its totient is φ = 904624064.

The previous prime is 2261560219. The next prime is 2261560283. The reversal of 2261560240 is 420651622.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2261560240² = 10229309438297715200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261560199 and 2261560208.

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, 14134672 + ... + 14134831.

Almost surely, 2^2261560240 is an apocalyptic number.

2261560240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261560240 is an abundant number, since it is smaller than the sum of its proper divisors (2996567504).

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

2261560240 is a wasteful number, since it uses less digits than its factorization.

2261560240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28269516 (or 28269510 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2261560240 is about 47555.8644122888. The cubic root of 2261560240 is about 1312.6110423361.

The spelling of 2261560240 in words is "two billion, two hundred sixty-one million, five hundred sixty thousand, two hundred forty".