1426331431 has 8 divisors (see below), whose sum is σ = 1657722240. Its totient is φ = 1201847928.

The previous prime is 1426331377. The next prime is 1426331441. The reversal of 1426331431 is 1341336241.

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

It is a cyclic number.

It is not a de Polignac number, because 1426331431 - 2⁷ = 1426331303 is a prime.

It is a super-2 number, since 2×1426331431² = 4068842702117015522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1426331431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426331441) 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 7 ways as a sum of consecutive naturals, for example, 1726381 + ... + 1727206.

It is an arithmetic number, because the mean of its divisors is an integer number (207215280).

Almost surely, 2^1426331431 is an apocalyptic number.

1426331431 is a deficient number, since it is larger than the sum of its proper divisors (231390809).

1426331431 is an equidigital number, since it uses as much as digits as its factorization.

1426331431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453653.

The product of its digits is 5184, while the sum is 28.

The square root of 1426331431 is about 37766.8032933686. The cubic root of 1426331431 is about 1125.6589209198.

Adding to 1426331431 its reverse (1341336241), we get a palindrome (2767667672).

The spelling of 1426331431 in words is "one billion, four hundred twenty-six million, three hundred thirty-one thousand, four hundred thirty-one".