6444066 has 16 divisors (see below), whose sum is σ = 13188384. Its totient is φ = 2097984.

The previous prime is 6444049. The next prime is 6444079. The reversal of 6444066 is 6604446.

It is a super-2 number, since 2×6444066² = 83051973224712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12231 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (824274).

Almost surely, 2^6444066 is an apocalyptic number.

6444066 is an abundant number, since it is smaller than the sum of its proper divisors (6744318).

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

6444066 is a wasteful number, since it uses less digits than its factorization.

6444066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25025.

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

The square root of 6444066 is about 2538.5164959086. The cubic root of 6444066 is about 186.0886962799.

The spelling of 6444066 in words is "six million, four hundred forty-four thousand, sixty-six".