202404642 has 32 divisors (see below), whose sum is σ = 455860224. Its totient is φ = 59355600.

The previous prime is 202404641. The next prime is 202404647. The reversal of 202404642 is 246404202.

It is not an unprimeable number, because it can be changed into a prime (202404641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47418 + ... + 51509.

It is an arithmetic number, because the mean of its divisors is an integer number (14245632).

Almost surely, 2^202404642 is an apocalyptic number.

202404642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202404642 is an abundant number, since it is smaller than the sum of its proper divisors (253455582).

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

202404642 is a wasteful number, since it uses less digits than its factorization.

202404642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98974.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 202404642 is about 14226.8985376293. The cubic root of 202404642 is about 587.1379554192.

Adding to 202404642 its reverse (246404202), we get a palindrome (448808844).

The spelling of 202404642 in words is "two hundred two million, four hundred four thousand, six hundred forty-two".