1423899936 has 144 divisors (see below), whose sum is σ = 4278193920. Its totient is φ = 448519680.

The previous prime is 1423899931. The next prime is 1423899973. The reversal of 1423899936 is 6399983241.

1423899936 is a `hidden beast` number, since 142 + 389 + 99 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1423899931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382050 + ... + 385758.

It is an arithmetic number, because the mean of its divisors is an integer number (29709680).

Almost surely, 2^1423899936 is an apocalyptic number.

1423899936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423899936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2139096960).

1423899936 is an abundant number, since it is smaller than the sum of its proper divisors (2854293984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423899936 is a wasteful number, since it uses less digits than its factorization.

1423899936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799 (or 3788 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 1423899936 is about 37734.5986595856. The cubic root of 1423899936 is about 1125.0189128672.

The spelling of 1423899936 in words is "one billion, four hundred twenty-three million, eight hundred ninety-nine thousand, nine hundred thirty-six".