1911968 has 24 divisors (see below), whose sum is σ = 3798900. Its totient is φ = 947200.

The previous prime is 1911961. The next prime is 1911977. The reversal of 1911968 is 8691191.

It can be written as a sum of positive squares in 2 ways, for example, as 1882384 + 29584 = 1372^2 + 172^2 .

It is not an unprimeable number, because it can be changed into a prime (1911961) 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, 4568 + ... + 4968.

2^1911968 is an apocalyptic number.

It is an amenable number.

1911968 is a deficient number, since it is larger than the sum of its proper divisors (1886932).

1911968 is a wasteful number, since it uses less digits than its factorization.

1911968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 552 counting only the distinct ones).

The product of its digits is 3888, while the sum is 35.

The square root of 1911968 is about 1382.7393102100. The cubic root of 1911968 is about 124.1157434732.

The spelling of 1911968 in words is "one million, nine hundred eleven thousand, nine hundred sixty-eight".