22806631 has 4 divisors (see below), whose sum is σ = 24007000. Its totient is φ = 21606264.

The previous prime is 22806629. The next prime is 22806647. The reversal of 22806631 is 13660822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22806631 - 2¹ = 22806629 is a prime.

It is a super-2 number, since 2×22806631² = 1040284835140322, 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 22806631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22806671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600156 + ... + 600193.

It is an arithmetic number, because the mean of its divisors is an integer number (6001750).

Almost surely, 2^22806631 is an apocalyptic number.

22806631 is a deficient number, since it is larger than the sum of its proper divisors (1200369).

22806631 is a wasteful number, since it uses less digits than its factorization.

22806631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200368.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22806631 is about 4775.6288591137. The cubic root of 22806631 is about 283.5874747045.

It can be divided in two parts, 2280 and 6631, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 22806631 in words is "twenty-two million, eight hundred six thousand, six hundred thirty-one".