22049320 has 16 divisors (see below), whose sum is σ = 49611060. Its totient is φ = 8819712.

The previous prime is 22049311. The next prime is 22049347. The reversal of 22049320 is 2394022.

It can be written as a sum of positive squares in 2 ways, for example, as 20921476 + 1127844 = 4574^2 + 1062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22049291 and 22049300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275577 + ... + 275656.

Almost surely, 2^22049320 is an apocalyptic number.

22049320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22049320 is an abundant number, since it is smaller than the sum of its proper divisors (27561740).

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

22049320 is a wasteful number, since it uses less digits than its factorization.

22049320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551244 (or 551240 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22049320 is about 4695.6703461806. The cubic root of 22049320 is about 280.4131655469.

The spelling of 22049320 in words is "twenty-two million, forty-nine thousand, three hundred twenty".