1232402144 has 24 divisors (see below), whose sum is σ = 2431264248. Its totient is φ = 614938240.

The previous prime is 1232402099. The next prime is 1232402147. The reversal of 1232402144 is 4412042321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232402147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23507 + ... + 54930.

It is an arithmetic number, because the mean of its divisors is an integer number (101302677).

Almost surely, 2^1232402144 is an apocalyptic number.

It is an amenable number.

1232402144 is a deficient number, since it is larger than the sum of its proper divisors (1198862104).

1232402144 is an equidigital number, since it uses as much as digits as its factorization.

1232402144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78938 (or 78930 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1232402144 is about 35105.5856524286. The cubic root of 1232402144 is about 1072.1383110321.

Adding to 1232402144 its reverse (4412042321), we get a palindrome (5644444465).

The spelling of 1232402144 in words is "one billion, two hundred thirty-two million, four hundred two thousand, one hundred forty-four".