6444274 has 4 divisors (see below), whose sum is σ = 9666414. Its totient is φ = 3222136.

The previous prime is 6444271. The next prime is 6444299. The reversal of 6444274 is 4724446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4020025 + 2424249 = 2005^2 + 1557^2 .

It is not an unprimeable number, because it can be changed into a prime (6444271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611067 + ... + 1611070.

Almost surely, 2^6444274 is an apocalyptic number.

6444274 is a deficient number, since it is larger than the sum of its proper divisors (3222140).

6444274 is a wasteful number, since it uses less digits than its factorization.

6444274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222139.

The product of its digits is 21504, while the sum is 31.

The square root of 6444274 is about 2538.5574643880. The cubic root of 6444274 is about 186.0906984336.

It can be divided in two parts, 64442 and 74, that added together give a square (64516 = 254²).

The spelling of 6444274 in words is "six million, four hundred forty-four thousand, two hundred seventy-four".