22082420 has 24 divisors (see below), whose sum is σ = 47029248. Its totient is φ = 8708000.

The previous prime is 22082407. The next prime is 22082429. The reversal of 22082420 is 2428022.

22082420 = T₁₆₀ + T₁₆₁ + ... + T₅₁₄.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22082392 and 22082401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22082429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6356 + ... + 9195.

It is an arithmetic number, because the mean of its divisors is an integer number (1959552).

Almost surely, 2^22082420 is an apocalyptic number.

22082420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22082420 is an abundant number, since it is smaller than the sum of its proper divisors (24946828).

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

22082420 is a wasteful number, since it uses less digits than its factorization.

22082420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15631 (or 15629 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 22082420 is about 4699.1935478335. The cubic root of 22082420 is about 280.5534122780.

The spelling of 22082420 in words is "twenty-two million, eighty-two thousand, four hundred twenty".