1431444642 has 16 divisors (see below), whose sum is σ = 3031294752. Its totient is φ = 449080640.

The previous prime is 1431444551. The next prime is 1431444661. The reversal of 1431444642 is 2464441341.

It is a super-2 number, since 2×1431444642² = 4098067526221016328, 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, 7016784 + ... + 7016987.

It is an arithmetic number, because the mean of its divisors is an integer number (189455922).

Almost surely, 2^1431444642 is an apocalyptic number.

1431444642 is an abundant number, since it is smaller than the sum of its proper divisors (1599850110).

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

1431444642 is a wasteful number, since it uses less digits than its factorization.

1431444642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14033793.

The product of its digits is 36864, while the sum is 33.

The square root of 1431444642 is about 37834.4372496803. The cubic root of 1431444642 is about 1127.0024299317.

Adding to 1431444642 its reverse (2464441341), we get a palindrome (3895885983).

The spelling of 1431444642 in words is "one billion, four hundred thirty-one million, four hundred forty-four thousand, six hundred forty-two".