240242031 has 10 divisors (see below), whose sum is σ = 358880192. Its totient is φ = 160161300.

The previous prime is 240242027. The next prime is 240242039. The reversal of 240242031 is 130242042.

240242031 is a `hidden beast` number, since 240 + 2 + 420 + 3 + 1 = 666.

It is not a de Polignac number, because 240242031 - 2² = 240242027 is a prime.

It is a super-2 number, since 2×240242031² = 115432466918009922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240241995 and 240242013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240242039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1482895 + ... + 1483056.

Almost surely, 2^240242031 is an apocalyptic number.

240242031 is a deficient number, since it is larger than the sum of its proper divisors (118638161).

240242031 is an equidigital number, since it uses as much as digits as its factorization.

240242031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965963 (or 2965954 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 240242031 is about 15499.7429333522. The cubic root of 240242031 is about 621.6553328376.

Adding to 240242031 its reverse (130242042), we get a palindrome (370484073).

The spelling of 240242031 in words is "two hundred forty million, two hundred forty-two thousand, thirty-one".