22391146 has 8 divisors (see below), whose sum is σ = 33613344. Its totient is φ = 11186700.

The previous prime is 22391137. The next prime is 22391153. The reversal of 22391146 is 64119322.

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

It is a zygodrome in base 4.

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 3 ways as a sum of consecutive naturals, for example, 630 + ... + 6721.

It is an arithmetic number, because the mean of its divisors is an integer number (4201668).

Almost surely, 2^22391146 is an apocalyptic number.

22391146 is a deficient number, since it is larger than the sum of its proper divisors (11222198).

22391146 is a wasteful number, since it uses less digits than its factorization.

22391146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876.

The product of its digits is 2592, while the sum is 28.

The square root of 22391146 is about 4731.9283595591. The cubic root of 22391146 is about 281.8548034457.

The spelling of 22391146 in words is "twenty-two million, three hundred ninety-one thousand, one hundred forty-six".