1431869042 has 4 divisors (see below), whose sum is σ = 2147803566. Its totient is φ = 715934520.

The previous prime is 1431869039. The next prime is 1431869057. The reversal of 1431869042 is 2409681341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 768342961 + 663526081 = 27719^2 + 25759^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1431868987 and 1431869005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357967259 + ... + 357967262.

Almost surely, 2^1431869042 is an apocalyptic number.

1431869042 is a deficient number, since it is larger than the sum of its proper divisors (715934524).

1431869042 is an equidigital number, since it uses as much as digits as its factorization.

1431869042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715934523.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1431869042 is about 37840.0454809452. The cubic root of 1431869042 is about 1127.1137982085.

The spelling of 1431869042 in words is "one billion, four hundred thirty-one million, eight hundred sixty-nine thousand, forty-two".