612431222 has 32 divisors (see below), whose sum is σ = 1083650400. Its totient is φ = 256854528.

The previous prime is 612431219. The next prime is 612431231. The reversal of 612431222 is 222134216.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11072 + ... + 36707.

It is an arithmetic number, because the mean of its divisors is an integer number (33864075).

Almost surely, 2^612431222 is an apocalyptic number.

612431222 is a deficient number, since it is larger than the sum of its proper divisors (471219178).

612431222 is a wasteful number, since it uses less digits than its factorization.

612431222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47840.

The product of its digits is 1152, while the sum is 23.

The square root of 612431222 is about 24747.3477770851. The cubic root of 612431222 is about 849.2178373442.

Adding to 612431222 its reverse (222134216), we get a palindrome (834565438).

The spelling of 612431222 in words is "six hundred twelve million, four hundred thirty-one thousand, two hundred twenty-two".