210834442 has 64 divisors (see below), whose sum is σ = 417602304. Its totient is φ = 77460480.

The previous prime is 210834397. The next prime is 210834443. The reversal of 210834442 is 244438012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 210834442.

It is not an unprimeable number, because it can be changed into a prime (210834443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256392 + ... + 257212.

It is an arithmetic number, because the mean of its divisors is an integer number (6525036).

Almost surely, 2^210834442 is an apocalyptic number.

210834442 is a deficient number, since it is larger than the sum of its proper divisors (206767862).

210834442 is a wasteful number, since it uses less digits than its factorization.

210834442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 210834442 is about 14520.1391866607. The cubic root of 210834442 is about 595.1784338793.

The spelling of 210834442 in words is "two hundred ten million, eight hundred thirty-four thousand, four hundred forty-two".