20934612 has 30 divisors (see below), whose sum is σ = 54728058. Its totient is φ = 6978096.

The previous prime is 20934611. The next prime is 20934653. The reversal of 20934612 is 21643902.

It can be written as a sum of positive squares in only one way, i.e., 16112196 + 4822416 = 4014^2 + 2196^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31983 + ... + 32630.

Almost surely, 2^20934612 is an apocalyptic number.

It is an amenable number.

20934612 is an abundant number, since it is smaller than the sum of its proper divisors (33793446).

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

20934612 is a wasteful number, since it uses less digits than its factorization.

20934612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64629 (or 64618 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20934612 is about 4575.4357169564. The cubic root of 20934612 is about 275.6057698648.

It can be divided in two parts, 209346 and 12, that multiplied together give a palindrome (2512152).

The spelling of 20934612 in words is "twenty million, nine hundred thirty-four thousand, six hundred twelve".