1431406328 has 16 divisors (see below), whose sum is σ = 2927876760. Its totient is φ = 650639200.

The previous prime is 1431406321. The next prime is 1431406337. The reversal of 1431406328 is 8236041341.

It is a junction number, because it is equal to n+sod(n) for n = 1431406294 and 1431406303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431406321) 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, 8132903 + ... + 8133078.

Almost surely, 2^1431406328 is an apocalyptic number.

It is an amenable number.

1431406328 is an abundant number, since it is smaller than the sum of its proper divisors (1496470432).

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

1431406328 is a wasteful number, since it uses less digits than its factorization.

1431406328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16265998 (or 16265994 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1431406328 is about 37833.9309086434. The cubic root of 1431406328 is about 1126.9923747387.

Adding to 1431406328 its reverse (8236041341), we get a palindrome (9667447669).

The spelling of 1431406328 in words is "one billion, four hundred thirty-one million, four hundred six thousand, three hundred twenty-eight".