2345564140440 has 64 divisors (see below), whose sum is σ = 7037369359200. Its totient is φ = 625423598592.

The previous prime is 2345564140399. The next prime is 2345564140453. The reversal of 2345564140440 is 440414655432.

It is a super-2 number, since 2×2345564140440² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2345564140392 and 2345564140401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319396 + ... + 2189324.

Almost surely, 2^{2345564140440} is an apocalyptic number.

2345564140440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2345564140440 is an abundant number, since it is smaller than the sum of its proper divisors (4691805218760).

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

2345564140440 is a wasteful number, since it uses less digits than its factorization.

2345564140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880396 (or 1880392 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 2345564140440 its reverse (440414655432), we get a palindrome (2785978795872).

The spelling of 2345564140440 in words is "two trillion, three hundred forty-five billion, five hundred sixty-four million, one hundred forty thousand, four hundred forty".