1431572940 has 120 divisors (see below), whose sum is σ = 5132494752. Its totient is φ = 327214080.

The previous prime is 1431572939. The next prime is 1431572959. The reversal of 1431572940 is 492751341.

1431572940 is a `hidden beast` number, since 1 + 43 + 1 + 572 + 9 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1431572895 and 1431572904.

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 39 ways as a sum of consecutive naturals, for example, 51781 + ... + 74460.

Almost surely, 2^1431572940 is an apocalyptic number.

1431572940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431572940 is an abundant number, since it is smaller than the sum of its proper divisors (3700921812).

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

1431572940 is a wasteful number, since it uses less digits than its factorization.

1431572940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126269 (or 126258 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1431572940 is about 37836.1327304998. The cubic root of 1431572940 is about 1127.0360993762.

The spelling of 1431572940 in words is "one billion, four hundred thirty-one million, five hundred seventy-two thousand, nine hundred forty".