5640120 has 48 divisors (see below), whose sum is σ = 18331560. Its totient is φ = 1503936.

The previous prime is 5640119. The next prime is 5640149. The reversal of 5640120 is 210465.

It is a happy number.

5640120 is a `hidden beast` number, since 5 + 640 + 1 + 20 = 666.

5640120 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×5640120² = 63621907228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5640093 and 5640102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7474 + ... + 8193.

Almost surely, 2^5640120 is an apocalyptic number.

It is an amenable number.

5640120 is an abundant number, since it is smaller than the sum of its proper divisors (12691440).

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

5640120 is a wasteful number, since it uses less digits than its factorization.

5640120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684 (or 15677 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5640120 is about 2374.8936818308. The cubic root of 5640120 is about 178.0038714808.

Adding to 5640120 its reverse (210465), we get a palindrome (5850585).

The spelling of 5640120 in words is "five million, six hundred forty thousand, one hundred twenty".