6444290 has 16 divisors (see below), whose sum is σ = 11913912. Its totient is φ = 2507904.

The previous prime is 6444271. The next prime is 6444299. The reversal of 6444290 is 924446.

It can be written as a sum of positive squares in 4 ways, for example, as 6436369 + 7921 = 2537^2 + 89^2 .

It is not an unprimeable number, because it can be changed into a prime (6444299) 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, 8339 + ... + 9078.

Almost surely, 2^6444290 is an apocalyptic number.

6444290 is a deficient number, since it is larger than the sum of its proper divisors (5469622).

6444290 is a wasteful number, since it uses less digits than its factorization.

6444290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 6444290 is about 2538.5606157821. The cubic root of 6444290 is about 186.0908524437.

The spelling of 6444290 in words is "six million, four hundred forty-four thousand, two hundred ninety".