22404863 has 4 divisors (see below), whose sum is σ = 24128328. Its totient is φ = 20681400.

The previous prime is 22404859. The next prime is 22404871. The reversal of 22404863 is 36840422.

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 22404863 - 2² = 22404859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861713 + ... + 861738.

It is an arithmetic number, because the mean of its divisors is an integer number (6032082).

Almost surely, 2^22404863 is an apocalyptic number.

22404863 is a deficient number, since it is larger than the sum of its proper divisors (1723465).

22404863 is a wasteful number, since it uses less digits than its factorization.

22404863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723464.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 22404863 is about 4733.3775467419. The cubic root of 22404863 is about 281.9123472195.

The spelling of 22404863 in words is "twenty-two million, four hundred four thousand, eight hundred sixty-three".