1939288 has 32 divisors (see below), whose sum is σ = 4057200. Its totient is φ = 862848.

The previous prime is 1939283. The next prime is 1939303. The reversal of 1939288 is 8829391.

It is a self number, because there is not a number n which added to its sum of digits gives 1939288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939283) 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, 2695 + ... + 3337.

2^1939288 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 1939288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2028600).

1939288 is an abundant number, since it is smaller than the sum of its proper divisors (2117912).

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

1939288 is a wasteful number, since it uses less digits than its factorization.

1939288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 687 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 1939288 is about 1392.5832111583. The cubic root of 1939288 is about 124.7041108160.

The spelling of 1939288 in words is "one million, nine hundred thirty-nine thousand, two hundred eighty-eight".