240231427 has 2 divisors, whose sum is σ = 240231428. Its totient is φ = 240231426.

The previous prime is 240231391. The next prime is 240231443. The reversal of 240231427 is 724132042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240231427 - 2¹⁵ = 240198659 is a prime.

It is a super-2 number, since 2×240231427² = 115422277036912658, which contains 22 as substring.

It is equal to p_13173622 and since 240231427 and 13173622 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (240231727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120115713 + 120115714.

It is an arithmetic number, because the mean of its divisors is an integer number (120115714).

Almost surely, 2^240231427 is an apocalyptic number.

240231427 is a deficient number, since it is larger than the sum of its proper divisors (1).

240231427 is an equidigital number, since it uses as much as digits as its factorization.

240231427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 240231427 is about 15499.4008593881. The cubic root of 240231427 is about 621.6461863252.

Adding to 240231427 its reverse (724132042), we get a palindrome (964363469).

The spelling of 240231427 in words is "two hundred forty million, two hundred thirty-one thousand, four hundred twenty-seven".