7381888 has 32 divisors (see below), whose sum is σ = 14877720. Its totient is φ = 3648000.

The previous prime is 7381879. The next prime is 7381889. The reversal of 7381888 is 8881837.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12643 + ... + 13213.

Almost surely, 2^7381888 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 7381888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7438860).

7381888 is an abundant number, since it is smaller than the sum of its proper divisors (7495832).

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

7381888 is a wasteful number, since it uses less digits than its factorization.

7381888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 674 counting only the distinct ones).

The product of its digits is 86016, while the sum is 43.

The square root of 7381888 is about 2716.9630104217. The cubic root of 7381888 is about 194.7104007158.

The spelling of 7381888 in words is "seven million, three hundred eighty-one thousand, eight hundred eighty-eight".