240231403 has 4 divisors (see below), whose sum is σ = 254362680. Its totient is φ = 226100128.

The previous prime is 240231391. The next prime is 240231427. The reversal of 240231403 is 304132042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240231403 is a prime.

It is a super-2 number, since 2×240231403² = 115422253974696818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240231443) 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, 7065613 + ... + 7065646.

It is an arithmetic number, because the mean of its divisors is an integer number (63590670).

Almost surely, 2^240231403 is an apocalyptic number.

240231403 is a deficient number, since it is larger than the sum of its proper divisors (14131277).

240231403 is a wasteful number, since it uses less digits than its factorization.

240231403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14131276.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 240231403 is about 15499.4000851646. The cubic root of 240231403 is about 621.6461656236.

Adding to 240231403 its reverse (304132042), we get a palindrome (544363445).

The spelling of 240231403 in words is "two hundred forty million, two hundred thirty-one thousand, four hundred three".