211454412 has 48 divisors (see below), whose sum is σ = 539304192. Its totient is φ = 64088640.

The previous prime is 211454389. The next prime is 211454443. The reversal of 211454412 is 214454112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337 + ... + 20567.

It is an arithmetic number, because the mean of its divisors is an integer number (11235504).

Almost surely, 2^211454412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211454412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269652096).

211454412 is an abundant number, since it is smaller than the sum of its proper divisors (327849780).

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

211454412 is a wasteful number, since it uses less digits than its factorization.

211454412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20318 (or 20316 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 211454412 is about 14541.4721400551. The cubic root of 211454412 is about 595.7612477036.

The spelling of 211454412 in words is "two hundred eleven million, four hundred fifty-four thousand, four hundred twelve".