1893138 has 24 divisors (see below), whose sum is σ = 4102128. Its totient is φ = 582192.

The previous prime is 1893131. The next prime is 1893163. The reversal of 1893138 is 8313981.

It is a junction number, because it is equal to n+sod(n) for n = 1893099 and 1893108.

It is not an unprimeable number, because it can be changed into a prime (1893131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81 + ... + 1947.

It is an arithmetic number, because the mean of its divisors is an integer number (170922).

2^1893138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1893138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2051064).

1893138 is an abundant number, since it is smaller than the sum of its proper divisors (2208990).

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

1893138 is a wasteful number, since it uses less digits than its factorization.

1893138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1885 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 1893138 is about 1375.9135147239. The cubic root of 1893138 is about 123.7069475787.

The spelling of 1893138 in words is "one million, eight hundred ninety-three thousand, one hundred thirty-eight".