6020640 has 144 divisors (see below), whose sum is σ = 21287448. Its totient is φ = 1548288.

The previous prime is 6020627. The next prime is 6020647. The reversal of 6020640 is 460206.

6020640 is a `hidden beast` number, since 6 + 0 + 20 + 640 = 666.

6020640 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 4 ways, for example, as 4309776 + 1710864 = 2076^2 + 1308^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6020647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53224 + ... + 53336.

Almost surely, 2^6020640 is an apocalyptic number.

6020640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6020640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10643724).

6020640 is an abundant number, since it is smaller than the sum of its proper divisors (15266808).

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

6020640 is a wasteful number, since it uses less digits than its factorization.

6020640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 6020640 is about 2453.6992480742. The cubic root of 6020640 is about 181.9201839770.

Adding to 6020640 its reverse (460206), we get a palindrome (6480846).

The spelling of 6020640 in words is "six million, twenty thousand, six hundred forty".