1252431432 has 96 divisors (see below), whose sum is σ = 3911057280. Its totient is φ = 354654720.

The previous prime is 1252431421. The next prime is 1252431533. The reversal of 1252431432 is 2341342521.

It is a junction number, because it is equal to n+sod(n) for n = 1252431396 and 1252431405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45957 + ... + 67947.

It is an arithmetic number, because the mean of its divisors is an integer number (40740180).

Almost surely, 2^1252431432 is an apocalyptic number.

1252431432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252431432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1955528640).

1252431432 is an abundant number, since it is smaller than the sum of its proper divisors (2658625848).

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

1252431432 is a wasteful number, since it uses less digits than its factorization.

1252431432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22123 (or 22116 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1252431432 is about 35389.7079954045. The cubic root of 1252431432 is about 1077.9153408365.

Adding to 1252431432 its reverse (2341342521), we get a palindrome (3593773953).

It can be divided in two parts, 12524 and 31432, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 1252431432 in words is "one billion, two hundred fifty-two million, four hundred thirty-one thousand, four hundred thirty-two".