1431432988 has 12 divisors (see below), whose sum is σ = 2540290032. Its totient is φ = 705635840.

The previous prime is 1431432979. The next prime is 1431433007. The reversal of 1431432988 is 8892341341.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2519845 + ... + 2520412.

It is an arithmetic number, because the mean of its divisors is an integer number (211690836).

Almost surely, 2^1431432988 is an apocalyptic number.

It is an amenable number.

1431432988 is a deficient number, since it is larger than the sum of its proper divisors (1108857044).

1431432988 is a wasteful number, since it uses less digits than its factorization.

1431432988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040332 (or 5040330 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1431432988 is about 37834.2832362396. The cubic root of 1431432988 is about 1126.9993714546. Note that the first 3 decimals are identical.

The spelling of 1431432988 in words is "one billion, four hundred thirty-one million, four hundred thirty-two thousand, nine hundred eighty-eight".