22812036 has 48 divisors (see below), whose sum is σ = 57624000. Its totient is φ = 6982272.

The previous prime is 22812029. The next prime is 22812037. The reversal of 22812036 is 63021822.

It is a junction number, because it is equal to n+sod(n) for n = 22811997 and 22812015.

It is not an unprimeable number, because it can be changed into a prime (22812037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54235 + ... + 54653.

It is an arithmetic number, because the mean of its divisors is an integer number (1200500).

Almost surely, 2^22812036 is an apocalyptic number.

22812036 is a gapful number since it is divisible by the number (26) 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 22812036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28812000).

22812036 is an abundant number, since it is smaller than the sum of its proper divisors (34811964).

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

22812036 is a wasteful number, since it uses less digits than its factorization.

22812036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22812036 is about 4776.1947196487. The cubic root of 22812036 is about 283.6098756344.

Adding to 22812036 its reverse (63021822), we get a palindrome (85833858).

The spelling of 22812036 in words is "twenty-two million, eight hundred twelve thousand, thirty-six".