20366444 has 24 divisors (see below), whose sum is σ = 40846848. Its totient is φ = 8704080.

The previous prime is 20366443. The next prime is 20366449. The reversal of 20366444 is 44466302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20366443) 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, 12179 + ... + 13749.

It is an arithmetic number, because the mean of its divisors is an integer number (1701952).

Almost surely, 2^20366444 is an apocalyptic number.

It is an amenable number.

20366444 is an abundant number, since it is smaller than the sum of its proper divisors (20480404).

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

20366444 is a wasteful number, since it uses less digits than its factorization.

20366444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2043 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 20366444 is about 4512.9196757753. The cubic root of 20366444 is about 273.0895420249.

The spelling of 20366444 in words is "twenty million, three hundred sixty-six thousand, four hundred forty-four".