211440442024 has 32 divisors (see below), whose sum is σ = 453220761600. Its totient is φ = 90590512320.

The previous prime is 211440442019. The next prime is 211440442039. The reversal of 211440442024 is 420244044112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 211440441983 and 211440442001.

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, 367272 + ... + 746839.

It is an arithmetic number, because the mean of its divisors is an integer number (14163148800).

Almost surely, 2^211440442024 is an apocalyptic number.

It is an amenable number.

211440442024 is an abundant number, since it is smaller than the sum of its proper divisors (241780319576).

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

211440442024 is a wasteful number, since it uses less digits than its factorization.

211440442024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117513 (or 1117509 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 211440442024 its reverse (420244044112), we get a palindrome (631684486136).

The spelling of 211440442024 in words is "two hundred eleven billion, four hundred forty million, four hundred forty-two thousand, twenty-four".