424042231 has 2 divisors, whose sum is σ = 424042232. Its totient is φ = 424042230.

The previous prime is 424042219. The next prime is 424042249. The reversal of 424042231 is 132240424.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424042231 - 2²⁷ = 289824503 is a prime.

It is a super-2 number, since 2×424042231² = 359623627342914722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424043231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212021115 + 212021116.

It is an arithmetic number, because the mean of its divisors is an integer number (212021116).

Almost surely, 2^424042231 is an apocalyptic number.

424042231 is a deficient number, since it is larger than the sum of its proper divisors (1).

424042231 is an equidigital number, since it uses as much as digits as its factorization.

424042231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 424042231 is about 20592.2857157723. The cubic root of 424042231 is about 751.2820921079.

Adding to 424042231 its reverse (132240424), we get a palindrome (556282655).

The spelling of 424042231 in words is "four hundred twenty-four million, forty-two thousand, two hundred thirty-one".