2135422008 has 128 divisors (see below), whose sum is σ = 6320160000. Its totient is φ = 666112896.

The previous prime is 2135421991. The next prime is 2135422013. The reversal of 2135422008 is 8002245312.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337498 + ... + 343766.

It is an arithmetic number, because the mean of its divisors is an integer number (49376250).

Almost surely, 2^2135422008 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 2135422008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3160080000).

2135422008 is an abundant number, since it is smaller than the sum of its proper divisors (4184737992).

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

2135422008 is a wasteful number, since it uses less digits than its factorization.

2135422008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386 (or 6376 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2135422008 is about 46210.6265700867. The cubic root of 2135422008 is about 1287.7391660263.

The spelling of 2135422008 in words is "two billion, one hundred thirty-five million, four hundred twenty-two thousand, eight".