20662134 has 16 divisors (see below), whose sum is σ = 41848320. Its totient is φ = 6800040.

The previous prime is 20662133. The next prime is 20662171. The reversal of 20662134 is 43126602.

It is a super-3 number, since 3×20662134³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662133) 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, 21322 + ... + 22269.

It is an arithmetic number, because the mean of its divisors is an integer number (2615520).

Almost surely, 2^20662134 is an apocalyptic number.

20662134 is an abundant number, since it is smaller than the sum of its proper divisors (21186186).

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

20662134 is a wasteful number, since it uses less digits than its factorization.

20662134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43675.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20662134 is about 4545.5620114569. The cubic root of 20662134 is about 274.4048130320.

Adding to 20662134 its reverse (43126602), we get a palindrome (63788736).

The spelling of 20662134 in words is "twenty million, six hundred sixty-two thousand, one hundred thirty-four".