22146646 has 16 divisors (see below), whose sum is σ = 34448976. Its totient is φ = 10669536.

The previous prime is 22146637. The next prime is 22146659. The reversal of 22146646 is 64664122.

It is a congruent number.

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, 6520 + ... + 9316.

It is an arithmetic number, because the mean of its divisors is an integer number (2153061).

Almost surely, 2^22146646 is an apocalyptic number.

22146646 is a deficient number, since it is larger than the sum of its proper divisors (12302330).

22146646 is a wasteful number, since it uses less digits than its factorization.

22146646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943.

The product of its digits is 13824, while the sum is 31.

The square root of 22146646 is about 4706.0223118893. The cubic root of 22146646 is about 280.8251424986.

The spelling of 22146646 in words is "twenty-two million, one hundred forty-six thousand, six hundred forty-six".