2113022646 has 64 divisors (see below), whose sum is σ = 5387535360. Its totient is φ = 601344000.

The previous prime is 2113022641. The next prime is 2113022669. The reversal of 2113022646 is 6462203112.

2113022646 is a `hidden beast` number, since 2 + 1 + 13 + 0 + 2 + 2 + 646 = 666.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113022641) by changing a digit.

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, 86271 + ... + 108021.

It is an arithmetic number, because the mean of its divisors is an integer number (84180240).

Almost surely, 2^2113022646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113022646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2693767680).

2113022646 is an abundant number, since it is smaller than the sum of its proper divisors (3274512714).

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

2113022646 is a wasteful number, since it uses less digits than its factorization.

2113022646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22026 (or 22020 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2113022646 is about 45967.6260644380. The cubic root of 2113022646 is about 1283.2207801591.

Adding to 2113022646 its reverse (6462203112), we get a palindrome (8575225758).

The spelling of 2113022646 in words is "two billion, one hundred thirteen million, twenty-two thousand, six hundred forty-six".