1431944364 has 24 divisors (see below), whose sum is σ = 3346157808.
Its totient is φ = 476607040.
The previous prime is 1431944351. The next prime is 1431944369. The reversal of 1431944364 is 4634491341.
It is not an unprimeable number, because it can be changed into a prime (1431944369) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 80007 + ... + 96254.
It is an arithmetic number, because the mean of its divisors is an integer number (139423242).
Almost surely, 21431944364 is an apocalyptic number.
It is an amenable number.
1431944364 is an abundant number, since it is smaller than the sum of its proper divisors (1914213444).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1431944364 is a wasteful number, since it uses less digits than its factorization.
1431944364 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 176945 (or 176943 counting only the distinct ones).
The product of its digits is 124416, while the sum is 39.
The square root of 1431944364 is about 37841.0407362165.
The cubic root of 1431944364 is about 1127.1335614165.
The spelling of 1431944364 in words is "one billion, four hundred thirty-one million, nine hundred forty-four thousand, three hundred sixty-four".