1423835233920 has 384 divisors, whose sum is σ = 5679165286080. Its totient is φ = 324867686400.

The previous prime is 1423835233907. The next prime is 1423835233939. The reversal of 1423835233920 is 293325383241.

1423835233920 is a `hidden beast` number, since 1 + 4 + 2 + 38 + 3 + 523 + 3 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×1423835233920² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 416175 + ... + 1738065.

Almost surely, 2^{1423835233920} is an apocalyptic number.

1423835233920 is a gapful number since it is divisible by the number (10) 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 1423835233920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839582643040).

1423835233920 is an abundant number, since it is smaller than the sum of its proper divisors (4255330052160).

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

1423835233920 is a wasteful number, since it uses less digits than its factorization.

1423835233920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321944 (or 1321929 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 1423835233920 in words is "one trillion, four hundred twenty-three billion, eight hundred thirty-five million, two hundred thirty-three thousand, nine hundred twenty".