1918736 has 10 divisors (see below), whose sum is σ = 3717582. Its totient is φ = 959360.

The previous prime is 1918733. The next prime is 1918747. The reversal of 1918736 is 6378191.

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 430336 = 1220^2 + 656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1918696 and 1918705.

It is not an unprimeable number, because it can be changed into a prime (1918733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59945 + ... + 59976.

2^1918736 is an apocalyptic number.

1918736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1918736 is a deficient number, since it is larger than the sum of its proper divisors (1798846).

1918736 is a wasteful number, since it uses less digits than its factorization.

1918736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119929 (or 119923 counting only the distinct ones).

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

The square root of 1918736 is about 1385.1844642502. The cubic root of 1918736 is about 124.2620196543.

The spelling of 1918736 in words is "one million, nine hundred eighteen thousand, seven hundred thirty-six".