5439618 has 24 divisors (see below), whose sum is σ = 11845548. Its totient is φ = 1804032.

The previous prime is 5439613. The next prime is 5439619. The reversal of 5439618 is 8169345.

5439618 is a `hidden beast` number, since 5 + 4 + 39 + 618 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5212089 + 227529 = 2283^2 + 477^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3546 + ... + 4842.

Almost surely, 2^5439618 is an apocalyptic number.

5439618 is an abundant number, since it is smaller than the sum of its proper divisors (6405930).

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

5439618 is a wasteful number, since it uses less digits than its factorization.

5439618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1535 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 5439618 is about 2332.2988659261. The cubic root of 5439618 is about 175.8690701504.

The spelling of 5439618 in words is "five million, four hundred thirty-nine thousand, six hundred eighteen".