1913984 has 32 divisors (see below), whose sum is σ = 4018800. Its totient is φ = 905472.

The previous prime is 1913983. The next prime is 1913993. The reversal of 1913984 is 4893191.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1913983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039 + ... + 2825.

2^1913984 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 1913984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009400).

1913984 is an abundant number, since it is smaller than the sum of its proper divisors (2104816).

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

1913984 is an equidigital number, since it uses as much as digits as its factorization.

1913984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 808 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 1913984 is about 1383.4681058846. The cubic root of 1913984 is about 124.1593511498.

The spelling of 1913984 in words is "one million, nine hundred thirteen thousand, nine hundred eighty-four".