1918252 has 18 divisors (see below), whose sum is σ = 3905412. Its totient is φ = 822024.

The previous prime is 1918247. The next prime is 1918283. The reversal of 1918252 is 2528191.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1918252.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4698 + ... + 5089.

2^1918252 is an apocalyptic number.

It is an amenable number.

1918252 is an abundant number, since it is smaller than the sum of its proper divisors (1987160).

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

1918252 is a wasteful number, since it uses less digits than its factorization.

1918252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805 (or 9796 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1918252 is about 1385.0097472581. The cubic root of 1918252 is about 124.2515704357.

The spelling of 1918252 in words is "one million, nine hundred eighteen thousand, two hundred fifty-two".