1943040 has 160 divisors (see below), whose sum is σ = 7070976. Its totient is φ = 450560.

The previous prime is 1943023. The next prime is 1943059. The reversal of 1943040 is 403491.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 1942998 and 1943016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84469 + ... + 84491.

2^1943040 is an apocalyptic number.

1943040 is a gapful number since it is divisible by the number (10) 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 1943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3535488).

1943040 is an abundant number, since it is smaller than the sum of its proper divisors (5127936).

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

1943040 is a wasteful number, since it uses less digits than its factorization.

1943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1943040 is about 1393.9296969360. The cubic root of 1943040 is about 124.7844819627.

The spelling of 1943040 in words is "one million, nine hundred forty-three thousand, forty".