6205440 has 104 divisors (see below), whose sum is σ = 20051568. Its totient is φ = 1638400.

The previous prime is 6205439. The next prime is 6205453. The reversal of 6205440 is 445026.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61390 + ... + 61490.

Almost surely, 2^6205440 is an apocalyptic number.

6205440 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 6205440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10025784).

6205440 is an abundant number, since it is smaller than the sum of its proper divisors (13846128).

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

6205440 is a wasteful number, since it uses less digits than its factorization.

6205440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 6205440 is about 2491.0720583717. The cubic root of 6205440 is about 183.7627692547.

The spelling of 6205440 in words is "six million, two hundred five thousand, four hundred forty".