202897538 has 8 divisors (see below), whose sum is σ = 305091660. Its totient is φ = 101200320.

The previous prime is 202897531. The next prime is 202897547. The reversal of 202897538 is 835798202.

202897538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 148181929 + 54715609 = 12173^2 + 7397^2 .

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

It is a super-2 number, since 2×202897538² = 82334821852922888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202897531) by changing a digit.

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, 123203 + ... + 124838.

Almost surely, 2^202897538 is an apocalyptic number.

202897538 is a deficient number, since it is larger than the sum of its proper divisors (102194122).

202897538 is a wasteful number, since it uses less digits than its factorization.

202897538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248452.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 202897538 is about 14244.2106836427. The cubic root of 202897538 is about 587.6141687281.

The spelling of 202897538 in words is "two hundred two million, eight hundred ninety-seven thousand, five hundred thirty-eight".