1918968 has 32 divisors (see below), whose sum is σ = 4929360. Its totient is φ = 622080.

The previous prime is 1918967. The next prime is 1918979. The reversal of 1918968 is 8698191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193 + ... + 1968.

2^1918968 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 1918968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2464680).

1918968 is an abundant number, since it is smaller than the sum of its proper divisors (3010392).

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

1918968 is a wasteful number, since it uses less digits than its factorization.

1918968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2203 counting only the distinct ones).

The product of its digits is 31104, while the sum is 42.

The square root of 1918968 is about 1385.2682050780. The cubic root of 1918968 is about 124.2670277476.

The spelling of 1918968 in words is "one million, nine hundred eighteen thousand, nine hundred sixty-eight".