1916424 has 48 divisors (see below), whose sum is σ = 5319600. Its totient is φ = 622944.

The previous prime is 1916423. The next prime is 1916443. The reversal of 1916424 is 4246191.

1916424 is a `hidden beast` number, since 19 + 1 + 642 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1916423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2787 + ... + 3405.

It is an arithmetic number, because the mean of its divisors is an integer number (110825).

2^1916424 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 1916424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2659800).

1916424 is an abundant number, since it is smaller than the sum of its proper divisors (3403176).

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

1916424 is a wasteful number, since it uses less digits than its factorization.

1916424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 667 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1916424 is about 1384.3496668111. The cubic root of 1916424 is about 124.2120893426.

The spelling of 1916424 in words is "one million, nine hundred sixteen thousand, four hundred twenty-four".