424212231 has 16 divisors (see below), whose sum is σ = 571705344. Its totient is φ = 279780384.

The previous prime is 424212209. The next prime is 424212233. The reversal of 424212231 is 132212424.

It is a de Polignac number, because none of the positive numbers 2^k-424212231 is a prime.

It is a super-2 number, since 2×424212231² = 359912033859994722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424212198 and 424212207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424212233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109825 + ... + 113621.

It is an arithmetic number, because the mean of its divisors is an integer number (35731584).

Almost surely, 2^424212231 is an apocalyptic number.

424212231 is a deficient number, since it is larger than the sum of its proper divisors (147493113).

424212231 is a wasteful number, since it uses less digits than its factorization.

424212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190.

The product of its digits is 768, while the sum is 21.

The square root of 424212231 is about 20596.4130615018. The cubic root of 424212231 is about 751.3824758925.

Adding to 424212231 its reverse (132212424), we get a palindrome (556424655).

The spelling of 424212231 in words is "four hundred twenty-four million, two hundred twelve thousand, two hundred thirty-one".