202421444 has 12 divisors (see below), whose sum is σ = 365664768. Its totient is φ = 97945800.

The previous prime is 202421437. The next prime is 202421447. The reversal of 202421444 is 444124202.

It is not an unprimeable number, because it can be changed into a prime (202421447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816092 + ... + 816339.

It is an arithmetic number, because the mean of its divisors is an integer number (30472064).

Almost surely, 2^202421444 is an apocalyptic number.

It is an amenable number.

202421444 is a deficient number, since it is larger than the sum of its proper divisors (163243324).

202421444 is a wasteful number, since it uses less digits than its factorization.

202421444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632466 (or 1632464 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 202421444 is about 14227.4890265289. The cubic root of 202421444 is about 587.1542014547.

Adding to 202421444 its reverse (444124202), we get a palindrome (646545646).

The spelling of 202421444 in words is "two hundred two million, four hundred twenty-one thousand, four hundred forty-four".