22063890 has 32 divisors (see below), whose sum is σ = 53597376. Its totient is φ = 5812160.

The previous prime is 22063879. The next prime is 22063897. The reversal of 22063890 is 9836022.

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

It is not an unprimeable number, because it can be changed into a prime (22063897) 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, 1941 + ... + 6920.

It is an arithmetic number, because the mean of its divisors is an integer number (1674918).

Almost surely, 2^22063890 is an apocalyptic number.

22063890 is an abundant number, since it is smaller than the sum of its proper divisors (31533486).

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

22063890 is a wasteful number, since it uses less digits than its factorization.

22063890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8954.

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

The square root of 22063890 is about 4697.2215191536. The cubic root of 22063890 is about 280.4749168123.

The spelling of 22063890 in words is "twenty-two million, sixty-three thousand, eight hundred ninety".