1913768 has 32 divisors (see below), whose sum is σ = 3796200. Its totient is φ = 903168.

The previous prime is 1913749. The next prime is 1913773. The reversal of 1913768 is 8673191.

It can be written as a sum of positive squares in 4 ways, for example, as 1170724 + 743044 = 1082^2 + 862^2 .

It is a zygodrome in base 5.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16880 + ... + 16992.

2^1913768 is an apocalyptic number.

It is an amenable number.

1913768 is a deficient number, since it is larger than the sum of its proper divisors (1882432).

1913768 is a wasteful number, since it uses less digits than its factorization.

1913768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 217 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 1913768 is about 1383.3900389984. The cubic root of 1913768 is about 124.1546803638.

The spelling of 1913768 in words is "one million, nine hundred thirteen thousand, seven hundred sixty-eight".