202021030 has 16 divisors (see below), whose sum is σ = 385028640. Its totient is φ = 76054912.

The previous prime is 202021021. The next prime is 202021033. The reversal of 202021030 is 30120202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 202020998 and 202021016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021033) 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 7 ways as a sum of consecutive naturals, for example, 594010 + ... + 594349.

It is an arithmetic number, because the mean of its divisors is an integer number (24064290).

Almost surely, 2^202021030 is an apocalyptic number.

202021030 is a deficient number, since it is larger than the sum of its proper divisors (183007610).

202021030 is a wasteful number, since it uses less digits than its factorization.

202021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188383.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 202021030 is about 14213.4102171154. The cubic root of 202021030 is about 586.7667919816.

Adding to 202021030 its reverse (30120202), we get a palindrome (232141232).

The spelling of 202021030 in words is "two hundred two million, twenty-one thousand, thirty".