22047830 has 32 divisors (see below), whose sum is σ = 46923840. Its totient is φ = 7297920.

The previous prime is 22047811. The next prime is 22047853. The reversal of 22047830 is 3874022.

It is a super-2 number, since 2×22047830² = 972213615417800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22047830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3401 + ... + 7460.

It is an arithmetic number, because the mean of its divisors is an integer number (1466370).

Almost surely, 2^22047830 is an apocalyptic number.

22047830 is an abundant number, since it is smaller than the sum of its proper divisors (24876010).

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

22047830 is a wasteful number, since it uses less digits than its factorization.

22047830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10904.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22047830 is about 4695.5116867068. The cubic root of 22047830 is about 280.4068490251.

The spelling of 22047830 in words is "twenty-two million, forty-seven thousand, eight hundred thirty".