202730073 has 64 divisors (see below), whose sum is σ = 352235520. Its totient is φ = 100793088.

The previous prime is 202730071. The next prime is 202730089. The reversal of 202730073 is 370037202.

It is not a de Polignac number, because 202730073 - 2¹ = 202730071 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202730071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 520963 + ... + 521351.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^202730073 is an apocalyptic number.

202730073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

202730073 is a deficient number, since it is larger than the sum of its proper divisors (149505447).

202730073 is a wasteful number, since it uses less digits than its factorization.

202730073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 202730073 is about 14238.3311170937. The cubic root of 202730073 is about 587.4524583832.

Adding to 202730073 its reverse (370037202), we get a palindrome (572767275).

The spelling of 202730073 in words is "two hundred two million, seven hundred thirty thousand, seventy-three".