1423938899 has 4 divisors (see below), whose sum is σ = 1424092080. Its totient is φ = 1423785720.

The previous prime is 1423938871. The next prime is 1423938917. The reversal of 1423938899 is 9988393241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9988393241 = 23 ⋅434277967.

It is a cyclic number.

It is not a de Polignac number, because 1423938899 - 2⁸ = 1423938643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423935899) 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, 61679 + ... + 81560.

It is an arithmetic number, because the mean of its divisors is an integer number (356023020).

Almost surely, 2^1423938899 is an apocalyptic number.

1423938899 is a deficient number, since it is larger than the sum of its proper divisors (153181).

1423938899 is an equidigital number, since it uses as much as digits as its factorization.

1423938899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153180.

The product of its digits is 3359232, while the sum is 56.

The square root of 1423938899 is about 37735.1149329110. The cubic root of 1423938899 is about 1125.0291742887.

The spelling of 1423938899 in words is "one billion, four hundred twenty-three million, nine hundred thirty-eight thousand, eight hundred ninety-nine".