1913344 has 40 divisors (see below), whose sum is σ = 3965148. Its totient is φ = 921600.

The previous prime is 1913341. The next prime is 1913377. The reversal of 1913344 is 4433191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 473344 = 1200^2 + 688^2 .

It is not an unprimeable number, because it can be changed into a prime (1913341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18894 + ... + 18994.

2^1913344 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 1913344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982574).

1913344 is an abundant number, since it is smaller than the sum of its proper divisors (2051804).

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

1913344 is an equidigital number, since it uses as much as digits as its factorization.

1913344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 140 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 1913344 is about 1383.2367837793. The cubic root of 1913344 is about 124.1455107618.

The spelling of 1913344 in words is "one million, nine hundred thirteen thousand, three hundred forty-four".