1402431423 has 4 divisors (see below), whose sum is σ = 1869908568. Its totient is φ = 934954280.

The previous prime is 1402431421. The next prime is 1402431451. The reversal of 1402431423 is 3241342041.

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

It is a cyclic number.

It is not a de Polignac number, because 1402431423 - 2¹ = 1402431421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1402431393 and 1402431402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402431421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233738568 + ... + 233738573.

It is an arithmetic number, because the mean of its divisors is an integer number (467477142).

Almost surely, 2^1402431423 is an apocalyptic number.

1402431423 is a deficient number, since it is larger than the sum of its proper divisors (467477145).

1402431423 is an equidigital number, since it uses as much as digits as its factorization.

1402431423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467477144.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1402431423 is about 37449.0510293652. The cubic root of 1402431423 is about 1119.3361880104.

Adding to 1402431423 its reverse (3241342041), we get a palindrome (4643773464).

The spelling of 1402431423 in words is "one billion, four hundred two million, four hundred thirty-one thousand, four hundred twenty-three".