2381392 has 30 divisors (see below), whose sum is σ = 5015738. Its totient is φ = 1088832.

The previous prime is 2381387. The next prime is 2381413. The reversal of 2381392 is 2931832.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 732736 = 1284^2 + 856^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2381392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22203 + ... + 22309.

2^2381392 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 2381392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2507869).

2381392 is an abundant number, since it is smaller than the sum of its proper divisors (2634346).

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

2381392 is a wasteful number, since it uses less digits than its factorization.

2381392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 122 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 2381392 is about 1543.1759458986. The cubic root of 2381392 is about 133.5396694148.

The spelling of 2381392 in words is "two million, three hundred eighty-one thousand, three hundred ninety-two".