1422423999 has 24 divisors (see below), whose sum is σ = 2181918960. Its totient is φ = 890410752.

The previous prime is 1422423973. The next prime is 1422424019. The reversal of 1422423999 is 9993242241.

1422423999 is a `hidden beast` number, since 14 + 2 + 242 + 399 + 9 = 666.

It is not a de Polignac number, because 1422423999 - 2²³ = 1414035391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422423599) 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 23 ways as a sum of consecutive naturals, for example, 17484 + ... + 56129.

It is an arithmetic number, because the mean of its divisors is an integer number (90913290).

Almost surely, 2^1422423999 is an apocalyptic number.

1422423999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1422423999 is a deficient number, since it is larger than the sum of its proper divisors (759494961).

1422423999 is a wasteful number, since it uses less digits than its factorization.

1422423999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73751 (or 73748 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1422423999 is about 37715.0367758007. The cubic root of 1422423999 is about 1124.6300674058.

The spelling of 1422423999 in words is "one billion, four hundred twenty-two million, four hundred twenty-three thousand, nine hundred ninety-nine".