2113694220 has 96 divisors (see below), whose sum is σ = 6471311616. Its totient is φ = 511225600.

The previous prime is 2113694207. The next prime is 2113694237. The reversal of 2113694220 is 224963112.

It is a super-2 number, since 2×2113694220² = 8935406511322816800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300787 + ... + 307733.

It is an arithmetic number, because the mean of its divisors is an integer number (67409496).

Almost surely, 2^2113694220 is an apocalyptic number.

2113694220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113694220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3235655808).

2113694220 is an abundant number, since it is smaller than the sum of its proper divisors (4357617396).

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

2113694220 is a wasteful number, since it uses less digits than its factorization.

2113694220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431 (or 7429 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2113694220 is about 45974.9303425247. The cubic root of 2113694220 is about 1283.3567128291.

The spelling of 2113694220 in words is "two billion, one hundred thirteen million, six hundred ninety-four thousand, two hundred twenty".