6453444 has 12 divisors (see below), whose sum is σ = 15058064. Its totient is φ = 2151144.

The previous prime is 6453443. The next prime is 6453451. The reversal of 6453444 is 4443546.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6453444² = 83293878922272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6453443) 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, 268882 + ... + 268905.

Almost surely, 2^6453444 is an apocalyptic number.

It is an amenable number.

6453444 is an abundant number, since it is smaller than the sum of its proper divisors (8604620).

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

6453444 is a wasteful number, since it uses less digits than its factorization.

6453444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537794 (or 537792 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 6453444 is about 2540.3629661920. The cubic root of 6453444 is about 186.1789236775.

The spelling of 6453444 in words is "six million, four hundred fifty-three thousand, four hundred forty-four".