202044021 has 8 divisors (see below), whose sum is σ = 270600960. Its totient is φ = 134091552.

The previous prime is 202043993. The next prime is 202044041. The reversal of 202044021 is 120440202.

202044021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 202044021 - 2⁹ = 202043509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202044041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150336 + ... + 151673.

It is an arithmetic number, because the mean of its divisors is an integer number (33825120).

Almost surely, 2^202044021 is an apocalyptic number.

It is an amenable number.

202044021 is a deficient number, since it is larger than the sum of its proper divisors (68556939).

202044021 is a wasteful number, since it uses less digits than its factorization.

202044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302235.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 202044021 is about 14214.2189725641. The cubic root of 202044021 is about 586.7890501323.

Adding to 202044021 its reverse (120440202), we get a palindrome (322484223).

The spelling of 202044021 in words is "two hundred two million, forty-four thousand, twenty-one".