240245265431 has 4 divisors (see below), whose sum is σ = 240253008864. Its totient is φ = 240237522000.

The previous prime is 240245265389. The next prime is 240245265451. The reversal of 240245265431 is 134562542042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240245265431 - 2³⁰ = 239171523607 is a prime.

It is a super-2 number, since 2×240245265431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240245265451) 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, 3824990 + ... + 3887291.

It is an arithmetic number, because the mean of its divisors is an integer number (60063252216).

Almost surely, 2^240245265431 is an apocalyptic number.

240245265431 is a deficient number, since it is larger than the sum of its proper divisors (7743433).

240245265431 is an equidigital number, since it uses as much as digits as its factorization.

240245265431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7743432.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 240245265431 in words is "two hundred forty billion, two hundred forty-five million, two hundred sixty-five thousand, four hundred thirty-one".