6573240 has 144 divisors (see below), whose sum is σ = 23236200. Its totient is φ = 1607040.

The previous prime is 6573233. The next prime is 6573257. The reversal of 6573240 is 423756.

It is a happy number.

6573240 is a `hidden beast` number, since 657 + 3 + 2 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 212025 + ... + 212055.

Almost surely, 2^6573240 is an apocalyptic number.

6573240 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 6573240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11618100).

6573240 is an abundant number, since it is smaller than the sum of its proper divisors (16662960).

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

6573240 is a wasteful number, since it uses less digits than its factorization.

6573240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 6573240 is about 2563.8330678888. The cubic root of 6573240 is about 187.3238879694.

Adding to 6573240 its reverse (423756), we get a palindrome (6996996).

The spelling of 6573240 in words is "six million, five hundred seventy-three thousand, two hundred forty".