1943928 has 144 divisors (see below), whose sum is σ = 6669000. Its totient is φ = 508032.

The previous prime is 1943923. The next prime is 1943941. The reversal of 1943928 is 8293491.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1943892 and 1943901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943923) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 67018 + ... + 67046.

2^1943928 is an apocalyptic number.

1943928 is a gapful number since it is divisible by the number (18) 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 1943928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3334500).

1943928 is an abundant number, since it is smaller than the sum of its proper divisors (4725072).

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

1943928 is a wasteful number, since it uses less digits than its factorization.

1943928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 60 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 1943928 is about 1394.2481845066. The cubic root of 1943928 is about 124.8034885613.

The spelling of 1943928 in words is "one million, nine hundred forty-three thousand, nine hundred twenty-eight".