208233028 has 12 divisors (see below), whose sum is σ = 364568512. Its totient is φ = 104070600.

The previous prime is 208233023. The next prime is 208233029. The reversal of 208233028 is 820332802.

208233028 is a nontrivial binomial coefficient, being equal to C(20408, 2).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 208232987 and 208233005.

It is not an unprimeable number, because it can be changed into a prime (208233023) 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 3 ways as a sum of consecutive naturals, for example, 1 + ... + 20407.

Almost surely, 2^208233028 is an apocalyptic number.

208233028 is the 20407-th triangular number and also the 10204-th hexagonal number.

208233028 is the 6803-rd centered nonagonal number.

It is an amenable number.

208233028 is a deficient number, since it is larger than the sum of its proper divisors (156335484).

208233028 is a wasteful number, since it uses less digits than its factorization.

208233028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22962 (or 22960 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 208233028 is about 14430.2816327333. The cubic root of 208233028 is about 592.7203953771.

The spelling of 208233028 in words is "two hundred eight million, two hundred thirty-three thousand, twenty-eight".