20364146 has 16 divisors (see below), whose sum is σ = 33747840. Its totient is φ = 9138480.

The previous prime is 20364139. The next prime is 20364151. The reversal of 20364146 is 64146302.

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, 4121 + ... + 7596.

It is an arithmetic number, because the mean of its divisors is an integer number (2109240).

Almost surely, 2^20364146 is an apocalyptic number.

20364146 is a deficient number, since it is larger than the sum of its proper divisors (13383694).

20364146 is a wasteful number, since it uses less digits than its factorization.

20364146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11809.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20364146 is about 4512.6650662330. The cubic root of 20364146 is about 273.0792704990.

The spelling of 20364146 in words is "twenty million, three hundred sixty-four thousand, one hundred forty-six".