918021802 has 8 divisors (see below), whose sum is σ = 1379080836. Its totient is φ = 458328192.

The previous prime is 918021787. The next prime is 918021833. The reversal of 918021802 is 208120819.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 908479881 + 9541921 = 30141^2 + 3089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339673 + ... + 342364.

Almost surely, 2^918021802 is an apocalyptic number.

918021802 is a deficient number, since it is larger than the sum of its proper divisors (461059034).

918021802 is a wasteful number, since it uses less digits than its factorization.

918021802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682712.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 918021802 is about 30298.8745995623. The cubic root of 918021802 is about 971.8912342239.

The spelling of 918021802 in words is "nine hundred eighteen million, twenty-one thousand, eight hundred two".