1913968 has 40 divisors (see below), whose sum is σ = 4428288. Its totient is φ = 783552.

The previous prime is 1913963. The next prime is 1913969. The reversal of 1913968 is 8693191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205 + ... + 2947.

2^1913968 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 1913968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2214144).

1913968 is an abundant number, since it is smaller than the sum of its proper divisors (2514320).

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

1913968 is a wasteful number, since it uses less digits than its factorization.

1913968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 775 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 1913968 is about 1383.4623233034. The cubic root of 1913968 is about 124.1590051777.

The spelling of 1913968 in words is "one million, nine hundred thirteen thousand, nine hundred sixty-eight".