252442132 has 12 divisors (see below), whose sum is σ = 465025120. Its totient is φ = 119577816.

The previous prime is 252442111. The next prime is 252442159. The reversal of 252442132 is 231244252.

It is a junction number, because it is equal to n+sod(n) for n = 252442097 and 252442106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660728 + ... + 1660879.

Almost surely, 2^252442132 is an apocalyptic number.

It is an amenable number.

252442132 is a deficient number, since it is larger than the sum of its proper divisors (212582988).

252442132 is a wasteful number, since it uses less digits than its factorization.

252442132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321630 (or 3321628 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 252442132 is about 15888.4276125739. The cubic root of 252442132 is about 632.0051440323.

Adding to 252442132 its reverse (231244252), we get a palindrome (483686384).

The spelling of 252442132 in words is "two hundred fifty-two million, four hundred forty-two thousand, one hundred thirty-two".