2251360040430 has 32 divisors (see below), whose sum is σ = 5452835335200. Its totient is φ = 594854762112.

The previous prime is 2251360040351. The next prime is 2251360040431. The reversal of 2251360040430 is 340400631522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251360040431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344241385 + ... + 344247924.

It is an arithmetic number, because the mean of its divisors is an integer number (170401104225).

Almost surely, 2^{2251360040430} is an apocalyptic number.

2251360040430 is an abundant number, since it is smaller than the sum of its proper divisors (3201475294770).

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

2251360040430 is a wasteful number, since it uses less digits than its factorization.

2251360040430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688489428.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 2251360040430 its reverse (340400631522), we get a palindrome (2591760671952).

The spelling of 2251360040430 in words is "two trillion, two hundred fifty-one billion, three hundred sixty million, forty thousand, four hundred thirty".