1938244 has 72 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 705600.

The previous prime is 1938239. The next prime is 1938253. The reversal of 1938244 is 4428391.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62509 + ... + 62539.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2^1938244 is an apocalyptic number.

1938244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1938244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240).

1938244 is an abundant number, since it is smaller than the sum of its proper divisors (2658236).

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

1938244 is a wasteful number, since it uses less digits than its factorization.

1938244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 80 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 1938244 is about 1392.2083177456. The cubic root of 1938244 is about 124.6817289829.

The spelling of 1938244 in words is "one million, nine hundred thirty-eight thousand, two hundred forty-four".