211742632 has 32 divisors (see below), whose sum is σ = 410109480. Its totient is φ = 102435840.

The previous prime is 211742627. The next prime is 211742639. The reversal of 211742632 is 236247112.

It can be written as a sum of positive squares in 4 ways, for example, as 209265156 + 2477476 = 14466^2 + 1574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 211742632.

It is not an unprimeable number, because it can be changed into a prime (211742639) 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 7 ways as a sum of consecutive naturals, for example, 27532 + ... + 34372.

Almost surely, 2^211742632 is an apocalyptic number.

It is an amenable number.

211742632 is a deficient number, since it is larger than the sum of its proper divisors (198366848).

211742632 is a wasteful number, since it uses less digits than its factorization.

211742632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973 (or 6969 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 211742632 is about 14551.3790411768. The cubic root of 211742632 is about 596.0318061791.

Adding to 211742632 its reverse (236247112), we get a palindrome (447989744).

The spelling of 211742632 in words is "two hundred eleven million, seven hundred forty-two thousand, six hundred thirty-two".