202542890 has 16 divisors (see below), whose sum is σ = 397720800. Its totient is φ = 73651920.

The previous prime is 202542883. The next prime is 202542919. The reversal of 202542890 is 98245202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920540 + ... + 920759.

It is an arithmetic number, because the mean of its divisors is an integer number (24857550).

Almost surely, 2^202542890 is an apocalyptic number.

202542890 is a deficient number, since it is larger than the sum of its proper divisors (195177910).

202542890 is a wasteful number, since it uses less digits than its factorization.

202542890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841317.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 202542890 is about 14231.7563919567. The cubic root of 202542890 is about 587.2716021803.

The spelling of 202542890 in words is "two hundred two million, five hundred forty-two thousand, eight hundred ninety".