6166440 has 96 divisors (see below), whose sum is σ = 22913280. Its totient is φ = 1408896.

The previous prime is 6166417. The next prime is 6166451. The reversal of 6166440 is 446616.

6166440 is a `hidden beast` number, since 6 + 16 + 644 + 0 = 666.

6166440 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

6166440 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1297 + ... + 3743.

It is an arithmetic number, because the mean of its divisors is an integer number (238680).

Almost surely, 2^6166440 is an apocalyptic number.

6166440 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 6166440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11456640).

6166440 is an abundant number, since it is smaller than the sum of its proper divisors (16746840).

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

6166440 is a wasteful number, since it uses less digits than its factorization.

6166440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6166440 is about 2483.2317652607. The cubic root of 6166440 is about 183.3769886857.

It can be divided in two parts, 616 and 6440, that added together give a square (7056 = 84²).

The spelling of 6166440 in words is "six million, one hundred sixty-six thousand, four hundred forty".