1918002 has 32 divisors (see below), whose sum is σ = 4049280. Its totient is φ = 604800.

The previous prime is 1917977. The next prime is 1918003. The reversal of 1918002 is 2008191.

It is a self number, because there is not a number n which added to its sum of digits gives 1918002.

It is not an unprimeable number, because it can be changed into a prime (1918003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12627 + ... + 12777.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

2^1918002 is an apocalyptic number.

1918002 is an abundant number, since it is smaller than the sum of its proper divisors (2131278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1918002 is a wasteful number, since it uses less digits than its factorization.

1918002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1918002 is about 1384.9194922449. The cubic root of 1918002 is about 124.2461724237.

The spelling of 1918002 in words is "one million, nine hundred eighteen thousand, two".