4191928 has 32 divisors (see below), whose sum is σ = 8966160. Its totient is φ = 1820160.

The previous prime is 4191919. The next prime is 4191931. The reversal of 4191928 is 8291914.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 4191893 and 4191902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583 + ... + 2953.

Almost surely, 2^4191928 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 4191928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4483080).

4191928 is an abundant number, since it is smaller than the sum of its proper divisors (4774232).

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

4191928 is a wasteful number, since it uses less digits than its factorization.

4191928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2403 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 4191928 is about 2047.4198397007. The cubic root of 4191928 is about 161.2394364412.

The spelling of 4191928 in words is "four million, one hundred ninety-one thousand, nine hundred twenty-eight".