211349444 has 12 divisors (see below), whose sum is σ = 381792768. Its totient is φ = 102265800.

The previous prime is 211349443. The next prime is 211349447. The reversal of 211349444 is 444943112.

It is a self number, because there is not a number n which added to its sum of digits gives 211349444.

It is not an unprimeable number, because it can be changed into a prime (211349441) 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, 852092 + ... + 852339.

It is an arithmetic number, because the mean of its divisors is an integer number (31816064).

Almost surely, 2^211349444 is an apocalyptic number.

It is an amenable number.

211349444 is a deficient number, since it is larger than the sum of its proper divisors (170443324).

211349444 is a wasteful number, since it uses less digits than its factorization.

211349444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704466 (or 1704464 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 211349444 is about 14537.8624288442. The cubic root of 211349444 is about 595.6626508529.

The spelling of 211349444 in words is "two hundred eleven million, three hundred forty-nine thousand, four hundred forty-four".