20934066 has 32 divisors (see below), whose sum is σ = 42864768. Its totient is φ = 6814080.

The previous prime is 20934061. The next prime is 20934073. The reversal of 20934066 is 66043902.

It is not an unprimeable number, because it can be changed into a prime (20934061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66726 + ... + 67038.

It is an arithmetic number, because the mean of its divisors is an integer number (1339524).

Almost surely, 2^20934066 is an apocalyptic number.

20934066 is an abundant number, since it is smaller than the sum of its proper divisors (21930702).

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

20934066 is a wasteful number, since it uses less digits than its factorization.

20934066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20934066 is about 4575.3760501187. The cubic root of 20934066 is about 275.6033738000.

Adding to 20934066 its reverse (66043902), we get a palindrome (86977968).

The spelling of 20934066 in words is "twenty million, nine hundred thirty-four thousand, sixty-six".