211233258 has 40 divisors (see below), whose sum is σ = 477092352. Its totient is φ = 69849864.

The previous prime is 211233251. The next prime is 211233263. The reversal of 211233258 is 852332112.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (211233251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15441 + ... + 25707.

Almost surely, 2^211233258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211233258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238546176).

211233258 is an abundant number, since it is smaller than the sum of its proper divisors (265859094).

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

211233258 is a wasteful number, since it uses less digits than its factorization.

211233258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10408 (or 10399 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 211233258 is about 14533.8659000281. The cubic root of 211233258 is about 595.5534788181.

The spelling of 211233258 in words is "two hundred eleven million, two hundred thirty-three thousand, two hundred fifty-eight".