20066046 has 96 divisors (see below), whose sum is σ = 54390528. Its totient is φ = 4792320.

The previous prime is 20066041. The next prime is 20066047. The reversal of 20066046 is 64066002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77950 + ... + 78206.

It is an arithmetic number, because the mean of its divisors is an integer number (566568).

Almost surely, 2^20066046 is an apocalyptic number.

20066046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20066046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27195264).

20066046 is an abundant number, since it is smaller than the sum of its proper divisors (34324482).

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

20066046 is a wasteful number, since it uses less digits than its factorization.

20066046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20066046 is about 4479.5140361428. The cubic root of 20066046 is about 271.7402274022.

The spelling of 20066046 in words is "twenty million, sixty-six thousand, forty-six".