2388881 has 8 divisors (see below), whose sum is σ = 2640000. Its totient is φ = 2143440.

The previous prime is 2388877. The next prime is 2388887. The reversal of 2388881 is 1888832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2388881 - 2² = 2388877 is a prime.

It is a super-2 number, since 2×2388881² = 11413504864322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2388887) 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, 506 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (330000).

2^2388881 is an apocalyptic number.

It is an amenable number.

2388881 is a deficient number, since it is larger than the sum of its proper divisors (251119).

2388881 is a wasteful number, since it uses less digits than its factorization.

2388881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839.

The product of its digits is 24576, while the sum is 38.

The square root of 2388881 is about 1545.6005305382. The cubic root of 2388881 is about 133.6795080839.

It can be divided in two parts, 238 and 8881, that added together give a palindrome (9119).

The spelling of 2388881 in words is "two million, three hundred eighty-eight thousand, eight hundred eighty-one".