20266446 has 8 divisors (see below), whose sum is σ = 40532904. Its totient is φ = 6755480.

The previous prime is 20266429. The next prime is 20266451. The reversal of 20266446 is 64466202.

It is a sphenic number, since it is the product of 3 distinct primes.

20266446 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688865 + ... + 1688876.

It is an arithmetic number, because the mean of its divisors is an integer number (5066613).

Almost surely, 2^20266446 is an apocalyptic number.

20266446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20266446 is a wasteful number, since it uses less digits than its factorization.

20266446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377746.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 20266446 is about 4501.8269624676. The cubic root of 20266446 is about 272.6418575143.

The spelling of 20266446 in words is "twenty million, two hundred sixty-six thousand, four hundred forty-six".