1232420664 has 16 divisors (see below), whose sum is σ = 3081051720. Its totient is φ = 410806880.

The previous prime is 1232420663. The next prime is 1232420671. The reversal of 1232420664 is 4660242321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232420663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25675407 + ... + 25675454.

Almost surely, 2^1232420664 is an apocalyptic number.

It is an amenable number.

1232420664 is an abundant number, since it is smaller than the sum of its proper divisors (1848631056).

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

1232420664 is a wasteful number, since it uses less digits than its factorization.

1232420664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51350870 (or 51350866 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1232420664 is about 35105.8494271254. The cubic root of 1232420664 is about 1072.1436815470.

Adding to 1232420664 its reverse (4660242321), we get a palindrome (5892662985).

The spelling of 1232420664 in words is "one billion, two hundred thirty-two million, four hundred twenty thousand, six hundred sixty-four".