6214140 has 144 divisors (see below), whose sum is σ = 20966400. Its totient is φ = 1482624.

The previous prime is 6214139. The next prime is 6214157. The reversal of 6214140 is 414126.

6214140 is a `hidden beast` number, since 621 + 4 + 1 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78621 + ... + 78699.

It is an arithmetic number, because the mean of its divisors is an integer number (145600).

Almost surely, 2^6214140 is an apocalyptic number.

6214140 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 6214140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10483200).

6214140 is an abundant number, since it is smaller than the sum of its proper divisors (14752260).

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

6214140 is a wasteful number, since it uses less digits than its factorization.

6214140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 6214140 is about 2492.8176828641. The cubic root of 6214140 is about 183.8486073545.

Adding to 6214140 its reverse (414126), we get a palindrome (6628266).

It can be divided in two parts, 621 and 4140, that added together give a square (4761 = 69²).

The spelling of 6214140 in words is "six million, two hundred fourteen thousand, one hundred forty".