240315431 has 8 divisors (see below), whose sum is σ = 259411680. Its totient is φ = 221939872.

The previous prime is 240315421. The next prime is 240315457. The reversal of 240315431 is 134513042.

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 240315431 - 2¹⁴ = 240299047 is a prime.

It is a super-2 number, since 2×240315431² = 115503012753431522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240315397 and 240315406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240315421) 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, 179480 + ... + 180813.

It is an arithmetic number, because the mean of its divisors is an integer number (32426460).

Almost surely, 2^240315431 is an apocalyptic number.

240315431 is a deficient number, since it is larger than the sum of its proper divisors (19096249).

240315431 is a wasteful number, since it uses less digits than its factorization.

240315431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360345.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 240315431 is about 15502.1105337306. The cubic root of 240315431 is about 621.7186368524.

Adding to 240315431 its reverse (134513042), we get a palindrome (374828473).

The spelling of 240315431 in words is "two hundred forty million, three hundred fifteen thousand, four hundred thirty-one".