22005948 has 24 divisors (see below), whose sum is σ = 51427152. Its totient is φ = 7323904.

The previous prime is 22005947. The next prime is 22005961. The reversal of 22005948 is 84950022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10786 + ... + 12662.

It is an arithmetic number, because the mean of its divisors is an integer number (2142798).

Almost surely, 2^22005948 is an apocalyptic number.

It is an amenable number.

22005948 is an abundant number, since it is smaller than the sum of its proper divisors (29421204).

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

22005948 is a wasteful number, since it uses less digits than its factorization.

22005948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2859 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 22005948 is about 4691.0497759030. The cubic root of 22005948 is about 280.2291831082.

The spelling of 22005948 in words is "twenty-two million, five thousand, nine hundred forty-eight".