1431944368 has 40 divisors (see below), whose sum is σ = 2912960880. Its totient is φ = 680951040.

The previous prime is 1431944351. The next prime is 1431944369. The reversal of 1431944368 is 8634491341.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1431944369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8058 + ... + 54118.

It is an arithmetic number, because the mean of its divisors is an integer number (72824022).

Almost surely, 2^1431944368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431944368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456480440).

1431944368 is an abundant number, since it is smaller than the sum of its proper divisors (1481016512).

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

1431944368 is a wasteful number, since it uses less digits than its factorization.

1431944368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46165 (or 46159 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 1431944368 is about 37841.0407890692. The cubic root of 1431944368 is about 1127.1335624660.

The spelling of 1431944368 in words is "one billion, four hundred thirty-one million, nine hundred forty-four thousand, three hundred sixty-eight".