20279106 has 32 divisors (see below), whose sum is σ = 45434880. Its totient is φ = 6704208.

The previous prime is 20279081. The next prime is 20279117. The reversal of 20279106 is 60197202.

It is a super-2 number, since 2×20279106² = 822484280318472, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20279106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5380 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (1419840).

Almost surely, 2^20279106 is an apocalyptic number.

20279106 is an abundant number, since it is smaller than the sum of its proper divisors (25155774).

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

20279106 is a wasteful number, since it uses less digits than its factorization.

20279106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095 (or 3089 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20279106 is about 4503.2328387504. The cubic root of 20279106 is about 272.6986168074.

The spelling of 20279106 in words is "twenty million, two hundred seventy-nine thousand, one hundred six".