211442460 has 24 divisors (see below), whose sum is σ = 592039056. Its totient is φ = 56384640.

The previous prime is 211442449. The next prime is 211442513. The reversal of 211442460 is 64244112.

It is a happy number.

211442460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211442460.

It is a congruent number.

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, 1761961 + ... + 1762080.

It is an arithmetic number, because the mean of its divisors is an integer number (24668294).

Almost surely, 2^211442460 is an apocalyptic number.

211442460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211442460 is an abundant number, since it is smaller than the sum of its proper divisors (380596596).

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

211442460 is a wasteful number, since it uses less digits than its factorization.

211442460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524053 (or 3524051 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 211442460 is about 14541.0611717302. The cubic root of 211442460 is about 595.7500227899.

Adding to 211442460 its reverse (64244112), we get a palindrome (275686572).

The spelling of 211442460 in words is "two hundred eleven million, four hundred forty-two thousand, four hundred sixty".