211234404 has 24 divisors (see below), whose sum is σ = 504343840. Its totient is φ = 68773824.

The previous prime is 211234379. The next prime is 211234423. The reversal of 211234404 is 404432112.

211234404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204169 + ... + 205200.

Almost surely, 2^211234404 is an apocalyptic number.

It is an amenable number.

211234404 is an abundant number, since it is smaller than the sum of its proper divisors (293109436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211234404 is a wasteful number, since it uses less digits than its factorization.

211234404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409419 (or 409417 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 211234404 is about 14533.9053251354. The cubic root of 211234404 is about 595.5545558313.

Adding to 211234404 its reverse (404432112), we get a palindrome (615666516).

The spelling of 211234404 in words is "two hundred eleven million, two hundred thirty-four thousand, four hundred four".