2381388 has 24 divisors (see below), whose sum is σ = 5591040. Its totient is φ = 788880.

The previous prime is 2381387. The next prime is 2381413. The reversal of 2381388 is 8831832.

It is not an unprimeable number, because it can be changed into a prime (2381387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1773 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (232960).

2^2381388 is an apocalyptic number.

It is an amenable number.

2381388 is an abundant number, since it is smaller than the sum of its proper divisors (3209652).

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

2381388 is a wasteful number, since it uses less digits than its factorization.

2381388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1235 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 2381388 is about 1543.1746498695. The cubic root of 2381388 is about 133.5395946464.

The spelling of 2381388 in words is "two million, three hundred eighty-one thousand, three hundred eighty-eight".