2138073888 has 24 divisors (see below), whose sum is σ = 5612444208. Its totient is φ = 712691264.

The previous prime is 2138073887. The next prime is 2138073911. The reversal of 2138073888 is 8883708312.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×2138073888³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2138073887) 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, 11135706 + ... + 11135897.

It is an arithmetic number, because the mean of its divisors is an integer number (233851842).

Almost surely, 2^2138073888 is an apocalyptic number.

It is an amenable number.

2138073888 is an abundant number, since it is smaller than the sum of its proper divisors (3474370320).

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

2138073888 is a wasteful number, since it uses less digits than its factorization.

2138073888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22271616 (or 22271608 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 2138073888 is about 46239.3110675321. The cubic root of 2138073888 is about 1288.2720063873.

The spelling of 2138073888 in words is "two billion, one hundred thirty-eight million, seventy-three thousand, eight hundred eighty-eight".