2123838432 has 72 divisors (see below), whose sum is σ = 6247954440. Its totient is φ = 683531520.

The previous prime is 2123838391. The next prime is 2123838433. The reversal of 2123838432 is 2348383212.

2123838432 is a `hidden beast` number, since 212 + 3 + 8 + 3 + 8 + 432 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123838433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118794 + ... + 135497.

It is an arithmetic number, because the mean of its divisors is an integer number (86777145).

Almost surely, 2^2123838432 is an apocalyptic number.

It is an amenable number.

2123838432 is an abundant number, since it is smaller than the sum of its proper divisors (4124116008).

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

2123838432 is a wasteful number, since it uses less digits than its factorization.

2123838432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254336 (or 254325 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 2123838432 is about 46085.1215903788. The cubic root of 2123838432 is about 1285.4065002091.

The spelling of 2123838432 in words is "two billion, one hundred twenty-three million, eight hundred thirty-eight thousand, four hundred thirty-two".