6144140 has 36 divisors (see below), whose sum is σ = 13719216. Its totient is φ = 2310912.

The previous prime is 6144121. The next prime is 6144161. The reversal of 6144140 is 414416.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5249 + ... + 6311.

Almost surely, 2^6144140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6144140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6859608).

6144140 is an abundant number, since it is smaller than the sum of its proper divisors (7575076).

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

6144140 is a wasteful number, since it uses less digits than its factorization.

6144140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 6144140 is about 2478.7375819154. The cubic root of 6144140 is about 183.1556699437.

Adding to 6144140 its reverse (414416), we get a palindrome (6558556).

The spelling of 6144140 in words is "six million, one hundred forty-four thousand, one hundred forty".