6228445 has 4 divisors (see below), whose sum is σ = 7474140. Its totient is φ = 4982752.

The previous prime is 6228413. The next prime is 6228449. The reversal of 6228445 is 5448226.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2883204 + 3345241 = 1698^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 6228445 - 2⁵ = 6228413 is a prime.

6228445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6228449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622840 + ... + 622849.

It is an arithmetic number, because the mean of its divisors is an integer number (1868535).

Almost surely, 2^6228445 is an apocalyptic number.

It is an amenable number.

6228445 is a deficient number, since it is larger than the sum of its proper divisors (1245695).

6228445 is a wasteful number, since it uses less digits than its factorization.

6228445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245694.

The product of its digits is 15360, while the sum is 31.

The square root of 6228445 is about 2495.6852766325. The cubic root of 6228445 is about 183.9895728968.

The spelling of 6228445 in words is "six million, two hundred twenty-eight thousand, four hundred forty-five".