22085940 has 24 divisors (see below), whose sum is σ = 61840800. Its totient is φ = 5889568.

The previous prime is 22085939. The next prime is 22085953. The reversal of 22085940 is 4958022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22085898 and 22085907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183990 + ... + 184109.

It is an arithmetic number, because the mean of its divisors is an integer number (2576700).

Almost surely, 2^22085940 is an apocalyptic number.

22085940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22085940 is an abundant number, since it is smaller than the sum of its proper divisors (39754860).

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

22085940 is a wasteful number, since it uses less digits than its factorization.

22085940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368111 (or 368109 counting only the distinct ones).

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

The square root of 22085940 is about 4699.5680652588. The cubic root of 22085940 is about 280.5683184876.

The spelling of 22085940 in words is "twenty-two million, eighty-five thousand, nine hundred forty".