240313431 has 8 divisors (see below), whose sum is σ = 325848960. Its totient is φ = 157493432.

The previous prime is 240313421. The next prime is 240313529. The reversal of 240313431 is 134313042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240313431 - 2⁵ = 240313399 is a prime.

It is a super-2 number, since 2×240313431² = 115501090237983522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240313398 and 240313407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240313421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678675 + ... + 679028.

It is an arithmetic number, because the mean of its divisors is an integer number (40731120).

Almost surely, 2^240313431 is an apocalyptic number.

240313431 is a deficient number, since it is larger than the sum of its proper divisors (85535529).

240313431 is a wasteful number, since it uses less digits than its factorization.

240313431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357765.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 240313431 is about 15502.0460262509. The cubic root of 240313431 is about 621.7169121182.

Adding to 240313431 its reverse (134313042), we get a palindrome (374626473).

The spelling of 240313431 in words is "two hundred forty million, three hundred thirteen thousand, four hundred thirty-one".