1423938279 has 4 divisors (see below), whose sum is σ = 1898584376. Its totient is φ = 949292184.

The previous prime is 1423938277. The next prime is 1423938293. The reversal of 1423938279 is 9728393241.

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

It is not a de Polignac number, because 1423938279 - 2¹ = 1423938277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423938277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237323044 + ... + 237323049.

It is an arithmetic number, because the mean of its divisors is an integer number (474646094).

Almost surely, 2^1423938279 is an apocalyptic number.

1423938279 is a deficient number, since it is larger than the sum of its proper divisors (474646097).

1423938279 is an equidigital number, since it uses as much as digits as its factorization.

1423938279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474646096.

The product of its digits is 653184, while the sum is 48.

The square root of 1423938279 is about 37735.1067177502. The cubic root of 1423938279 is about 1125.0290110050.

The spelling of 1423938279 in words is "one billion, four hundred twenty-three million, nine hundred thirty-eight thousand, two hundred seventy-nine".