210833428 has 12 divisors (see below), whose sum is σ = 397340020. Its totient is φ = 97307712.

The previous prime is 210833423. The next prime is 210833453. The reversal of 210833428 is 824338012.

It can be written as a sum of positive squares in 2 ways, for example, as 71876484 + 138956944 = 8478^2 + 11788^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210833428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210833423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2027193 + ... + 2027296.

Almost surely, 2^210833428 is an apocalyptic number.

It is an amenable number.

210833428 is a deficient number, since it is larger than the sum of its proper divisors (186506592).

210833428 is a wasteful number, since it uses less digits than its factorization.

210833428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054506 (or 4054504 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 210833428 is about 14520.1042695981. The cubic root of 210833428 is about 595.1774797153.

The spelling of 210833428 in words is "two hundred ten million, eight hundred thirty-three thousand, four hundred twenty-eight".