6198444 has 72 divisors (see below), whose sum is σ = 18590208. Its totient is φ = 1769040.

The previous prime is 6198443. The next prime is 6198449. The reversal of 6198444 is 4448916.

It is a happy number.

It is a super-2 number, since 2×6198444² = 76841416042272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6198399 and 6198408.

It is not an unprimeable number, because it can be changed into a prime (6198443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6349 + ... + 7259.

Almost surely, 2^6198444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6198444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9295104).

6198444 is an abundant number, since it is smaller than the sum of its proper divisors (12391764).

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

6198444 is a wasteful number, since it uses less digits than its factorization.

6198444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 923 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6198444 is about 2489.6674476725. The cubic root of 6198444 is about 183.6936853667.

The spelling of 6198444 in words is "six million, one hundred ninety-eight thousand, four hundred forty-four".