1312240432 has 20 divisors (see below), whose sum is σ = 2543576040. Its totient is φ = 655833728.

The previous prime is 1312240399. The next prime is 1312240441. The reversal of 1312240432 is 2340422131.

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, 22668 + ... + 56020.

It is an arithmetic number, because the mean of its divisors is an integer number (127178802).

Almost surely, 2^1312240432 is an apocalyptic number.

It is an amenable number.

1312240432 is a deficient number, since it is larger than the sum of its proper divisors (1231335608).

1312240432 is a wasteful number, since it uses less digits than its factorization.

1312240432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35820 (or 35814 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1312240432 is about 36224.8593095957. The cubic root of 1312240432 is about 1094.8076035135.

Adding to 1312240432 its reverse (2340422131), we get a palindrome (3652662563).

The spelling of 1312240432 in words is "one billion, three hundred twelve million, two hundred forty thousand, four hundred thirty-two".