1431402344 has 16 divisors (see below), whose sum is σ = 2708964000. Its totient is φ = 709011952.

The previous prime is 1431402341. The next prime is 1431402347. The reversal of 1431402344 is 4432041341.

It is an interprime number because it is at equal distance from previous prime (1431402341) and next prime (1431402347).

It is not an unprimeable number, because it can be changed into a prime (1431402341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835244 + ... + 836955.

It is an arithmetic number, because the mean of its divisors is an integer number (169310250).

Almost surely, 2^1431402344 is an apocalyptic number.

It is an amenable number.

1431402344 is a deficient number, since it is larger than the sum of its proper divisors (1277561656).

1431402344 is a wasteful number, since it uses less digits than its factorization.

1431402344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672312 (or 1672308 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1431402344 is about 37833.8782574560. The cubic root of 1431402344 is about 1126.9913291605.

Adding to 1431402344 its reverse (4432041341), we get a palindrome (5863443685).

The spelling of 1431402344 in words is "one billion, four hundred thirty-one million, four hundred two thousand, three hundred forty-four".