2213725836 has 192 divisors, whose sum is σ = 6287984640. Its totient is φ = 593049600.

The previous prime is 2213725793. The next prime is 2213725847. The reversal of 2213725836 is 6385273122.

It is a junction number, because it is equal to n+sod(n) for n = 2213725794 and 2213725803.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14660361 + ... + 14660511.

It is an arithmetic number, because the mean of its divisors is an integer number (32749920).

Almost surely, 2^2213725836 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 2213725836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3143992320).

2213725836 is an abundant number, since it is smaller than the sum of its proper divisors (4074258804).

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

2213725836 is a wasteful number, since it uses less digits than its factorization.

2213725836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 2213725836 is about 47050.2479908449. The cubic root of 2213725836 is about 1303.2906449361.

Adding to 2213725836 its reverse (6385273122), we get a palindrome (8598998958).

The spelling of 2213725836 in words is "two billion, two hundred thirteen million, seven hundred twenty-five thousand, eight hundred thirty-six".