6444434 has 4 divisors (see below), whose sum is σ = 9666654. Its totient is φ = 3222216.

The previous prime is 6444413. The next prime is 6444437. The reversal of 6444434 is 4344446.

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., 4635409 + 1809025 = 2153^2 + 1345^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6444397 and 6444406.

It is not an unprimeable number, because it can be changed into a prime (6444437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611107 + ... + 1611110.

Almost surely, 2^6444434 is an apocalyptic number.

6444434 is a deficient number, since it is larger than the sum of its proper divisors (3222220).

6444434 is a wasteful number, since it uses less digits than its factorization.

6444434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222219.

The product of its digits is 18432, while the sum is 29.

The square root of 6444434 is about 2538.5889781530. The cubic root of 6444434 is about 186.0922385226.

The spelling of 6444434 in words is "six million, four hundred forty-four thousand, four hundred thirty-four".