6522444 has 60 divisors (see below), whose sum is σ = 17502408. Its totient is φ = 2116800.

The previous prime is 6522437. The next prime is 6522449. The reversal of 6522444 is 4442256.

6522444 is a `hidden beast` number, since 652 + 2 + 4 + 4 + 4 = 666.

It is a super-3 number, since 3×6522444³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6522449) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13039 + ... + 13529.

Almost surely, 2^6522444 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 6522444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8751204).

6522444 is an abundant number, since it is smaller than the sum of its proper divisors (10979964).

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

6522444 is a wasteful number, since it uses less digits than its factorization.

6522444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 537 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 6522444 is about 2553.9075942563. The cubic root of 6522444 is about 186.8401123151.

The spelling of 6522444 in words is "six million, five hundred twenty-two thousand, four hundred forty-four".