202680028 has 6 divisors (see below), whose sum is σ = 354690056. Its totient is φ = 101340012.

The previous prime is 202680019. The next prime is 202680029. The reversal of 202680028 is 820086202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202679978 and 202680005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202680029) 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 as a sum of consecutive naturals, namely, 25335000 + ... + 25335007.

Almost surely, 2^202680028 is an apocalyptic number.

It is an amenable number.

202680028 is a deficient number, since it is larger than the sum of its proper divisors (152010028).

202680028 is a wasteful number, since it uses less digits than its factorization.

202680028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50670011 (or 50670009 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 202680028 is about 14236.5736046283. The cubic root of 202680028 is about 587.4041158141.

The spelling of 202680028 in words is "two hundred two million, six hundred eighty thousand, twenty-eight".