22300664 has 8 divisors (see below), whose sum is σ = 41813760. Its totient is φ = 11150328.

The previous prime is 22300627. The next prime is 22300693. The reversal of 22300664 is 46600322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22300664² = 994639229681792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1393784 + ... + 1393799.

It is an arithmetic number, because the mean of its divisors is an integer number (5226720).

Almost surely, 2^22300664 is an apocalyptic number.

It is an amenable number.

22300664 is a deficient number, since it is larger than the sum of its proper divisors (19513096).

22300664 is a wasteful number, since it uses less digits than its factorization.

22300664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787589 (or 2787585 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 22300664 is about 4722.3578856330. The cubic root of 22300664 is about 281.4746350871.

Adding to 22300664 its reverse (46600322), we get a palindrome (68900986).

The spelling of 22300664 in words is "twenty-two million, three hundred thousand, six hundred sixty-four".