22208385 has 32 divisors (see below), whose sum is σ = 36484992. Its totient is φ = 11532800.

The previous prime is 22208357. The next prime is 22208411. The reversal of 22208385 is 58380222.

It is not a de Polignac number, because 22208385 - 2⁸ = 22208129 is a prime.

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 in 31 ways as a sum of consecutive naturals, for example, 162037 + ... + 162173.

It is an arithmetic number, because the mean of its divisors is an integer number (1140156).

Almost surely, 2^22208385 is an apocalyptic number.

It is an amenable number.

22208385 is a deficient number, since it is larger than the sum of its proper divisors (14276607).

22208385 is a wasteful number, since it uses less digits than its factorization.

22208385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 22208385 is about 4712.5773203206. The cubic root of 22208385 is about 281.0858558251.

The spelling of 22208385 in words is "twenty-two million, two hundred eight thousand, three hundred eighty-five".