1213432422 has 16 divisors (see below), whose sum is σ = 2445975552. Its totient is φ = 401292360.

The previous prime is 1213432421. The next prime is 1213432463. The reversal of 1213432422 is 2242343121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213432392 and 1213432401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213432421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795454 + ... + 796977.

It is an arithmetic number, because the mean of its divisors is an integer number (152873472).

Almost surely, 2^1213432422 is an apocalyptic number.

1213432422 is an abundant number, since it is smaller than the sum of its proper divisors (1232543130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213432422 is a wasteful number, since it uses less digits than its factorization.

1213432422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592563.

The product of its digits is 2304, while the sum is 24.

The square root of 1213432422 is about 34834.3569195701. The cubic root of 1213432422 is about 1066.6088878642.

Adding to 1213432422 its reverse (2242343121), we get a palindrome (3455775543).

The spelling of 1213432422 in words is "one billion, two hundred thirteen million, four hundred thirty-two thousand, four hundred twenty-two".