20692146 has 16 divisors (see below), whose sum is σ = 42002784. Its totient is φ = 6794304.

The previous prime is 20692141. The next prime is 20692153. The reversal of 20692146 is 64129602.

It is not an unprimeable number, because it can be changed into a prime (20692141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25335 + ... + 26138.

It is an arithmetic number, because the mean of its divisors is an integer number (2625174).

Almost surely, 2^20692146 is an apocalyptic number.

20692146 is an abundant number, since it is smaller than the sum of its proper divisors (21310638).

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

20692146 is a wasteful number, since it uses less digits than its factorization.

20692146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51545.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20692146 is about 4548.8620555036. The cubic root of 20692146 is about 274.5376075295.

The spelling of 20692146 in words is "twenty million, six hundred ninety-two thousand, one hundred forty-six".