240256604453 has 4 divisors (see below), whose sum is σ = 240257677548. Its totient is φ = 240255531360.

The previous prime is 240256604389. The next prime is 240256604477. The reversal of 240256604453 is 354406652042.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 167279364004 + 72977240449 = 408998^2 + 270143^2 .

It is a cyclic number.

It is not a de Polignac number, because 240256604453 - 2⁶ = 240256604389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240256604453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240256604053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59078 + ... + 695703.

It is an arithmetic number, because the mean of its divisors is an integer number (60064419387).

Almost surely, 2^240256604453 is an apocalyptic number.

It is an amenable number.

240256604453 is a deficient number, since it is larger than the sum of its proper divisors (1073095).

240256604453 is an equidigital number, since it uses as much as digits as its factorization.

240256604453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073094.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 240256604453 in words is "two hundred forty billion, two hundred fifty-six million, six hundred four thousand, four hundred fifty-three".