22173408 has 36 divisors (see below), whose sum is σ = 63056448. Its totient is φ = 7391040.

The previous prime is 22173407. The next prime is 22173409. The reversal of 22173408 is 80437122.

It is an interprime number because it is at equal distance from previous prime (22173407) and next prime (22173409).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173407) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 38208 + ... + 38783.

It is an arithmetic number, because the mean of its divisors is an integer number (1751568).

Almost surely, 2^22173408 is an apocalyptic number.

It is an amenable number.

22173408 is an abundant number, since it is smaller than the sum of its proper divisors (40883040).

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

22173408 is a wasteful number, since it uses less digits than its factorization.

22173408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77007 (or 76996 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22173408 is about 4708.8648313580. The cubic root of 22173408 is about 280.9382133036.

It can be divided in two parts, 2217 and 3408, that added together give a square (5625 = 75²).

The spelling of 22173408 in words is "twenty-two million, one hundred seventy-three thousand, four hundred eight".