20546226 has 24 divisors (see below), whose sum is σ = 44628480. Its totient is φ = 6831576.

The previous prime is 20546221. The next prime is 20546231. The reversal of 20546226 is 62264502.

It is an interprime number because it is at equal distance from previous prime (20546221) and next prime (20546231).

It is a self number, because there is not a number n which added to its sum of digits gives 20546226.

It is not an unprimeable number, because it can be changed into a prime (20546221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7431 + ... + 9813.

It is an arithmetic number, because the mean of its divisors is an integer number (1859520).

Almost surely, 2^20546226 is an apocalyptic number.

20546226 is an abundant number, since it is smaller than the sum of its proper divisors (24082254).

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

20546226 is a wasteful number, since it uses less digits than its factorization.

20546226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 20546226 is about 4532.7945022911. The cubic root of 20546226 is about 273.8907426650.

The spelling of 20546226 in words is "twenty million, five hundred forty-six thousand, two hundred twenty-six".