1254431332 has 48 divisors (see below), whose sum is σ = 2783370240. Its totient is φ = 480448800.

The previous prime is 1254431287. The next prime is 1254431333. The reversal of 1254431332 is 2331344521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1254431332.

It is not an unprimeable number, because it can be changed into a prime (1254431333) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16344 + ... + 52687.

It is an arithmetic number, because the mean of its divisors is an integer number (57986880).

Almost surely, 2^1254431332 is an apocalyptic number.

It is an amenable number.

1254431332 is an abundant number, since it is smaller than the sum of its proper divisors (1528938908).

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

1254431332 is a wasteful number, since it uses less digits than its factorization.

1254431332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69112 (or 69110 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 1254431332 is about 35417.9521147115. The cubic root of 1254431332 is about 1078.4887791428.

Adding to 1254431332 its reverse (2331344521), we get a palindrome (3585775853).

The spelling of 1254431332 in words is "one billion, two hundred fifty-four million, four hundred thirty-one thousand, three hundred thirty-two".