1931368 has 8 divisors (see below), whose sum is σ = 3621330. Its totient is φ = 965680.

The previous prime is 1931357. The next prime is 1931381. The reversal of 1931368 is 8631391.

It can be written as a sum of positive squares in only one way, i.e., 1592644 + 338724 = 1262^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 120703 + ... + 120718.

2^1931368 is an apocalyptic number.

It is an amenable number.

1931368 is a deficient number, since it is larger than the sum of its proper divisors (1689962).

1931368 is a wasteful number, since it uses less digits than its factorization.

1931368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241427 (or 241423 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 1931368 is about 1389.7366657033. The cubic root of 1931368 is about 124.5341164440.

The spelling of 1931368 in words is "one million, nine hundred thirty-one thousand, three hundred sixty-eight".