6261840 has 160 divisors (see below), whose sum is σ = 23331840. Its totient is φ = 1534464.

The previous prime is 6261839. The next prime is 6261841. The reversal of 6261840 is 481626.

6261840 is a `hidden beast` number, since 6 + 2 + 618 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (6261839) and next prime (6261841).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6261841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27969 + ... + 28191.

It is an arithmetic number, because the mean of its divisors is an integer number (145824).

Almost surely, 2^6261840 is an apocalyptic number.

6261840 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 6261840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11665920).

6261840 is an abundant number, since it is smaller than the sum of its proper divisors (17070000).

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

6261840 is a wasteful number, since it uses less digits than its factorization.

6261840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6261840 is about 2502.3668795762. The cubic root of 6261840 is about 184.3178187133.

The spelling of 6261840 in words is "six million, two hundred sixty-one thousand, eight hundred forty".