22207146 has 16 divisors (see below), whose sum is σ = 47830944. Its totient is φ = 6832944.

The previous prime is 22207139. The next prime is 22207153. The reversal of 22207146 is 64170222.

It is an interprime number because it is at equal distance from previous prime (22207139) and next prime (22207153).

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 7 ways as a sum of consecutive naturals, for example, 142276 + ... + 142431.

It is an arithmetic number, because the mean of its divisors is an integer number (2989434).

Almost surely, 2^22207146 is an apocalyptic number.

22207146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22207146 is an abundant number, since it is smaller than the sum of its proper divisors (25623798).

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

22207146 is a wasteful number, since it uses less digits than its factorization.

22207146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284725.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22207146 is about 4712.4458617580. The cubic root of 22207146 is about 281.0806284924.

Adding to 22207146 its reverse (64170222), we get a palindrome (86377368).

The spelling of 22207146 in words is "twenty-two million, two hundred seven thousand, one hundred forty-six".