22047982 has 16 divisors (see below), whose sum is σ = 36847872. Its totient is φ = 9808120.

The previous prime is 22047979. The next prime is 22047983. The reversal of 22047982 is 28974022.

It is a super-2 number, since 2×22047982² = 972227020544648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047983) 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, 9628 + ... + 11695.

It is an arithmetic number, because the mean of its divisors is an integer number (2302992).

Almost surely, 2^22047982 is an apocalyptic number.

22047982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22047982 is a deficient number, since it is larger than the sum of its proper divisors (14799890).

22047982 is a wasteful number, since it uses less digits than its factorization.

22047982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21383.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 22047982 is about 4695.5278723483. The cubic root of 22047982 is about 280.4074934082.

The spelling of 22047982 in words is "twenty-two million, forty-seven thousand, nine hundred eighty-two".