202043018 has 8 divisors (see below), whose sum is σ = 303148548. Its totient is φ = 100993504.

The previous prime is 202042993. The next prime is 202043059. The reversal of 202043018 is 810340202.

It can be written as a sum of positive squares in 2 ways, for example, as 199176769 + 2866249 = 14113^2 + 1693^2 .

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

It is a super-2 number, since 2×202043018² = 81642762245096648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3371 + ... + 20382.

Almost surely, 2^202043018 is an apocalyptic number.

202043018 is a deficient number, since it is larger than the sum of its proper divisors (101105530).

202043018 is a wasteful number, since it uses less digits than its factorization.

202043018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28008.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 202043018 is about 14214.1836909476. The cubic root of 202043018 is about 586.7880791387.

The spelling of 202043018 in words is "two hundred two million, forty-three thousand, eighteen".