1000918 has 4 divisors (see below), whose sum is σ = 1501380. Its totient is φ = 500458.

The previous prime is 1000907. The next prime is 1000919. The reversal of 1000918 is 8190001.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1000895 and 1000904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250228 + ... + 250231.

It is an arithmetic number, because the mean of its divisors is an integer number (375345).

2^1000918 is an apocalyptic number.

1000918 is a deficient number, since it is larger than the sum of its proper divisors (500462).

1000918 is an equidigital number, since it uses as much as digits as its factorization.

1000918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500461.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1000918 is about 1000.4588947078. The cubic root of 1000918 is about 100.0305906412.

Adding to 1000918 its reverse (8190001), we get a palindrome (9190919).

The spelling of 1000918 in words is "one million, nine hundred eighteen", and thus it is an aban number.