5451444 has 18 divisors (see below), whose sum is σ = 13780130. Its totient is φ = 1817136.

The previous prime is 5451431. The next prime is 5451473. The reversal of 5451444 is 4441545.

5451444 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4040100 + 1411344 = 2010^2 + 1188^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75679 + ... + 75750.

Almost surely, 2^5451444 is an apocalyptic number.

It is an amenable number.

5451444 is an abundant number, since it is smaller than the sum of its proper divisors (8328686).

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

5451444 is a wasteful number, since it uses less digits than its factorization.

5451444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151439 (or 151434 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 5451444 is about 2334.8327563232. The cubic root of 5451444 is about 175.9964272691.

Adding to 5451444 its reverse (4441545), we get a palindrome (9892989).

The spelling of 5451444 in words is "five million, four hundred fifty-one thousand, four hundred forty-four".