22670820 has 48 divisors (see below), whose sum is σ = 70533120. Its totient is φ = 6045408.

The previous prime is 22670777. The next prime is 22670821. The reversal of 22670820 is 2807622.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22670821) 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, 20452 + ... + 21531.

It is an arithmetic number, because the mean of its divisors is an integer number (1469440).

Almost surely, 2^22670820 is an apocalyptic number.

22670820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22670820 is an abundant number, since it is smaller than the sum of its proper divisors (47862300).

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

22670820 is a wasteful number, since it uses less digits than its factorization.

22670820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42001 (or 41993 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22670820 is about 4761.3884529620. The cubic root of 22670820 is about 283.0234428091.

The spelling of 22670820 in words is "twenty-two million, six hundred seventy thousand, eight hundred twenty".