22400869 has 8 divisors (see below), whose sum is σ = 22686048. Its totient is φ = 22117680.

The previous prime is 22400863. The next prime is 22400881. The reversal of 22400869 is 96800422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22400869 - 2⁵ = 22400837 is a prime.

It is a super-2 number, since 2×22400869² = 1003597863910322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22400869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39939 + ... + 40495.

It is an arithmetic number, because the mean of its divisors is an integer number (2835756).

Almost surely, 2^22400869 is an apocalyptic number.

It is an amenable number.

22400869 is a deficient number, since it is larger than the sum of its proper divisors (285179).

22400869 is a wasteful number, since it uses less digits than its factorization.

22400869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 22400869 is about 4732.9556304702. The cubic root of 22400869 is about 281.8955945346.

The spelling of 22400869 in words is "twenty-two million, four hundred thousand, eight hundred sixty-nine".