5618340 has 180 divisors, whose sum is σ = 21410844. Its totient is φ = 1185408.

The previous prime is 5618323. The next prime is 5618351. The reversal of 5618340 is 438165.

5618340 is a `hidden beast` number, since 5 + 618 + 3 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 4235364 = 1176^2 + 2058^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a nialpdrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 432174 + ... + 432186.

Almost surely, 2^5618340 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 5618340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10705422).

5618340 is an abundant number, since it is smaller than the sum of its proper divisors (15792504).

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

5618340 is a wasteful number, since it uses less digits than its factorization.

5618340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5618340 is about 2370.3037779998. The cubic root of 5618340 is about 177.7744481437.

The spelling of 5618340 in words is "five million, six hundred eighteen thousand, three hundred forty".