208237028 has 24 divisors (see below), whose sum is σ = 367543680. Its totient is φ = 103229280.

The previous prime is 208237021. The next prime is 208237031. The reversal of 208237028 is 820732802.

208237028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 208236985 and 208237003.

It is not an unprimeable number, because it can be changed into a prime (208237021) 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, 423863 + ... + 424353.

It is an arithmetic number, because the mean of its divisors is an integer number (15314320).

Almost surely, 2^208237028 is an apocalyptic number.

It is an amenable number.

208237028 is a deficient number, since it is larger than the sum of its proper divisors (159306652).

208237028 is a wasteful number, since it uses less digits than its factorization.

208237028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 208237028 is about 14430.4202295013. The cubic root of 208237028 is about 592.7241905906.

The spelling of 208237028 in words is "two hundred eight million, two hundred thirty-seven thousand, twenty-eight".