1431899742 has 128 divisors (see below), whose sum is σ = 3661701120. Its totient is φ = 363242880.

The previous prime is 1431899723. The next prime is 1431899759. The reversal of 1431899742 is 2479981341.

It is a super-2 number, since 2×1431899742² = 4100673742279333128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1431899691 and 1431899700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1666509 + ... + 1667367.

It is an arithmetic number, because the mean of its divisors is an integer number (28607040).

Almost surely, 2^1431899742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431899742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830850560).

1431899742 is an abundant number, since it is smaller than the sum of its proper divisors (2229801378).

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

1431899742 is a wasteful number, since it uses less digits than its factorization.

1431899742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its digits is 435456, while the sum is 48.

The square root of 1431899742 is about 37840.4511336744. The cubic root of 1431899742 is about 1127.1218534485.

The spelling of 1431899742 in words is "one billion, four hundred thirty-one million, eight hundred ninety-nine thousand, seven hundred forty-two".