6021540 has 168 divisors, whose sum is σ = 22034880. Its totient is φ = 1353024.

The previous prime is 6021529. The next prime is 6021557. The reversal of 6021540 is 451206.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 102031 + ... + 102089.

It is an arithmetic number, because the mean of its divisors is an integer number (131160).

Almost surely, 2^6021540 is an apocalyptic number.

6021540 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 6021540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11017440).

6021540 is an abundant number, since it is smaller than the sum of its proper divisors (16013340).

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

6021540 is a wasteful number, since it uses less digits than its factorization.

6021540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 76 counting only the distinct ones).

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

The square root of 6021540 is about 2453.8826377804. The cubic root of 6021540 is about 181.9292483515.

Adding to 6021540 its reverse (451206), we get a palindrome (6472746).

It can be divided in two parts, 6021 and 540, that added together give a 8-th power (6561 = 3⁸).

The spelling of 6021540 in words is "six million, twenty-one thousand, five hundred forty".