6918144 has 52 divisors (see below), whose sum is σ = 18478896. Its totient is φ = 2301952.

The previous prime is 6918127. The next prime is 6918161. The reversal of 6918144 is 4418196.

It is an interprime number because it is at equal distance from previous prime (6918127) and next prime (6918161).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12007 + ... + 12569.

Almost surely, 2^6918144 is an apocalyptic number.

6918144 is a gapful number since it is divisible by the number (64) 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 6918144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9239448).

6918144 is an abundant number, since it is smaller than the sum of its proper divisors (11560752).

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

6918144 is an equidigital number, since it uses as much as digits as its factorization.

6918144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 568 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 6918144 is about 2630.2364912684. The cubic root of 6918144 is about 190.5445504475.

The spelling of 6918144 in words is "six million, nine hundred eighteen thousand, one hundred forty-four".