22285945 has 8 divisors (see below), whose sum is σ = 29174400. Its totient is φ = 16207920.

The previous prime is 22285937. The next prime is 22285957. The reversal of 22285945 is 54958222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22285945 - 2³ = 22285937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202545 + ... + 202654.

It is an arithmetic number, because the mean of its divisors is an integer number (3646800).

Almost surely, 2^22285945 is an apocalyptic number.

It is an amenable number.

22285945 is a deficient number, since it is larger than the sum of its proper divisors (6888455).

22285945 is a wasteful number, since it uses less digits than its factorization.

22285945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405215.

The product of its digits is 57600, while the sum is 37.

The square root of 22285945 is about 4720.7991908150. The cubic root of 22285945 is about 281.4126946745.

The spelling of 22285945 in words is "twenty-two million, two hundred eighty-five thousand, nine hundred forty-five".