1312432242 has 16 divisors (see below), whose sum is σ = 2863488672. Its totient is φ = 397706720.

The previous prime is 1312432229. The next prime is 1312432307. The reversal of 1312432242 is 2422342131.

It is a happy number.

It is a super-2 number, since 2×1312432242² = 3444956779682293128, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9942603 + ... + 9942734.

It is an arithmetic number, because the mean of its divisors is an integer number (178968042).

Almost surely, 2^1312432242 is an apocalyptic number.

1312432242 is an abundant number, since it is smaller than the sum of its proper divisors (1551056430).

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

1312432242 is a wasteful number, since it uses less digits than its factorization.

1312432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19885353.

The product of its digits is 2304, while the sum is 24.

The square root of 1312432242 is about 36227.5067041606. The cubic root of 1312432242 is about 1094.8609435393.

Adding to 1312432242 its reverse (2422342131), we get a palindrome (3734774373).

The spelling of 1312432242 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, two hundred forty-two".