22001796 has 36 divisors (see below), whose sum is σ = 55762252. Its totient is φ = 7314624.

The previous prime is 22001783. The next prime is 22001797. The reversal of 22001796 is 69710022.

It can be written as a sum of positive squares in 2 ways, for example, as 7485696 + 14516100 = 2736^2 + 3810^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (22001797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21570 + ... + 22566.

Almost surely, 2^22001796 is an apocalyptic number.

It is an amenable number.

22001796 is an abundant number, since it is smaller than the sum of its proper divisors (33760456).

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

22001796 is a wasteful number, since it uses less digits than its factorization.

22001796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 22001796 is about 4690.6072101595. The cubic root of 22001796 is about 280.2115578014.

The spelling of 22001796 in words is "twenty-two million, one thousand, seven hundred ninety-six".