1431641456 has 20 divisors (see below), whose sum is σ = 3170063472. Its totient is φ = 613560576.

The previous prime is 1431641443. The next prime is 1431641503. The reversal of 1431641456 is 6541461341.

It is a congruent number.

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, 6391145 + ... + 6391368.

Almost surely, 2^1431641456 is an apocalyptic number.

1431641456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1431641456 is an abundant number, since it is smaller than the sum of its proper divisors (1738422016).

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

1431641456 is a wasteful number, since it uses less digits than its factorization.

1431641456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12782528 (or 12782522 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 1431641456 is about 37837.0381504684. The cubic root of 1431641456 is about 1127.0540793132.

The spelling of 1431641456 in words is "one billion, four hundred thirty-one million, six hundred forty-one thousand, four hundred fifty-six".