202986642 has 32 divisors (see below), whose sum is σ = 410296320. Its totient is φ = 66946320.

The previous prime is 202986611. The next prime is 202986643. The reversal of 202986642 is 246689202.

It is a self number, because there is not a number n which added to its sum of digits gives 202986642.

It is not an unprimeable number, because it can be changed into a prime (202986643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281959 + ... + 282677.

It is an arithmetic number, because the mean of its divisors is an integer number (12821760).

Almost surely, 2^202986642 is an apocalyptic number.

202986642 is an abundant number, since it is smaller than the sum of its proper divisors (207309678).

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

202986642 is a wasteful number, since it uses less digits than its factorization.

202986642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 202986642 is about 14247.3380671619. The cubic root of 202986642 is about 587.7001745527.

The spelling of 202986642 in words is "two hundred two million, nine hundred eighty-six thousand, six hundred forty-two".