2135222928 has 120 divisors (see below), whose sum is σ = 6142106880. Its totient is φ = 692037120.

The previous prime is 2135222911. The next prime is 2135222959. The reversal of 2135222928 is 8292225312.

2135222928 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 2135222892 and 2135222901.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2969353 + ... + 2970071.

It is an arithmetic number, because the mean of its divisors is an integer number (51184224).

Almost surely, 2^2135222928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135222928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3071053440).

2135222928 is an abundant number, since it is smaller than the sum of its proper divisors (4006883952).

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

2135222928 is a wasteful number, since it uses less digits than its factorization.

2135222928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1268 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2135222928 is about 46208.4724698837. The cubic root of 2135222928 is about 1287.6991472261.

The spelling of 2135222928 in words is "two billion, one hundred thirty-five million, two hundred twenty-two thousand, nine hundred twenty-eight".