5400445 has 4 divisors (see below), whose sum is σ = 6480540. Its totient is φ = 4320352.

The previous prime is 5400443. The next prime is 5400457. The reversal of 5400445 is 5440045.

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 2948089 + 2452356 = 1717^2 + 1566^2 .

It is a cyclic number.

It is not a de Polignac number, because 5400445 - 2¹ = 5400443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400443) 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, 540040 + ... + 540049.

It is an arithmetic number, because the mean of its divisors is an integer number (1620135).

Almost surely, 2^5400445 is an apocalyptic number.

It is an amenable number.

5400445 is a deficient number, since it is larger than the sum of its proper divisors (1080095).

5400445 is a wasteful number, since it uses less digits than its factorization.

5400445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080094.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 5400445 is about 2323.8857545069. The cubic root of 5400445 is about 175.4458833748.

Adding to 5400445 its product of nonzero digits (1600), we get a palindrome (5402045).

It can be divided in two parts, 5 and 400445, that multiplied together give a square (2002225 = 1415²).

The spelling of 5400445 in words is "five million, four hundred thousand, four hundred forty-five".