1431072842 has 8 divisors (see below), whose sum is σ = 2150828100. Its totient is φ = 714130144.

The previous prime is 1431072823. The next prime is 1431072847. The reversal of 1431072842 is 2482701341.

It can be written as a sum of positive squares in 2 ways, for example, as 1431033241 + 39601 = 37829^2 + 199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1431072799 and 1431072808.

It is not an unprimeable number, because it can be changed into a prime (1431072847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 701867 + ... + 703902.

Almost surely, 2^1431072842 is an apocalyptic number.

1431072842 is a deficient number, since it is larger than the sum of its proper divisors (719755258).

1431072842 is a wasteful number, since it uses less digits than its factorization.

1431072842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406280.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1431072842 is about 37829.5234175637. The cubic root of 1431072842 is about 1126.9048465126.

The spelling of 1431072842 in words is "one billion, four hundred thirty-one million, seventy-two thousand, eight hundred forty-two".