240472317 has 4 divisors (see below), whose sum is σ = 320629760. Its totient is φ = 160314876.

The previous prime is 240472283. The next prime is 240472319. The reversal of 240472317 is 713274042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 240472317 - 2²² = 236278013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240472319) 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, 40078717 + ... + 40078722.

It is an arithmetic number, because the mean of its divisors is an integer number (80157440).

Almost surely, 2^240472317 is an apocalyptic number.

It is an amenable number.

240472317 is a deficient number, since it is larger than the sum of its proper divisors (80157443).

240472317 is an equidigital number, since it uses as much as digits as its factorization.

240472317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80157442.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 240472317 is about 15507.1698578432. The cubic root of 240472317 is about 621.8539003708.

The spelling of 240472317 in words is "two hundred forty million, four hundred seventy-two thousand, three hundred seventeen".