211742412 has 48 divisors (see below), whose sum is σ = 597864960. Its totient is φ = 56938752.

The previous prime is 211742411. The next prime is 211742459. The reversal of 211742412 is 214247112.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (211742411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72712 + ... + 75567.

It is an arithmetic number, because the mean of its divisors is an integer number (12455520).

Almost surely, 2^211742412 is an apocalyptic number.

It is an amenable number.

211742412 is an abundant number, since it is smaller than the sum of its proper divisors (386122548).

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

211742412 is a wasteful number, since it uses less digits than its factorization.

211742412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148310 (or 148308 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 211742412 is about 14551.3714817539. The cubic root of 211742412 is about 596.0315997539.

Adding to 211742412 its reverse (214247112), we get a palindrome (425989524).

The spelling of 211742412 in words is "two hundred eleven million, seven hundred forty-two thousand, four hundred twelve".