20427606 has 16 divisors (see below), whose sum is σ = 45394800. Its totient is φ = 6809184.

The previous prime is 20427601. The next prime is 20427613. The reversal of 20427606 is 60672402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20427606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20427601) 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, 189091 + ... + 189198.

It is an arithmetic number, because the mean of its divisors is an integer number (2837175).

Almost surely, 2^20427606 is an apocalyptic number.

20427606 is an abundant number, since it is smaller than the sum of its proper divisors (24967194).

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

20427606 is a wasteful number, since it uses less digits than its factorization.

20427606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378300 (or 378294 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20427606 is about 4519.6909186359. The cubic root of 20427606 is about 273.3626384734.

The spelling of 20427606 in words is "twenty million, four hundred twenty-seven thousand, six hundred six".