210440043 has 12 divisors (see below), whose sum is σ = 331602648. Its totient is φ = 127539360.

The previous prime is 210440017. The next prime is 210440047. The reversal of 210440043 is 340044012.

It is not a de Polignac number, because 210440043 - 2⁹ = 210439531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210439998 and 210440025.

It is not an unprimeable number, because it can be changed into a prime (210440047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1062730 + ... + 1062927.

It is an arithmetic number, because the mean of its divisors is an integer number (27633554).

Almost surely, 2^210440043 is an apocalyptic number.

210440043 is a deficient number, since it is larger than the sum of its proper divisors (121162605).

210440043 is a wasteful number, since it uses less digits than its factorization.

210440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125674 (or 2125671 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 210440043 is about 14506.5517267199. The cubic root of 210440043 is about 594.8070772506.

Adding to 210440043 its reverse (340044012), we get a palindrome (550484055).

The spelling of 210440043 in words is "two hundred ten million, four hundred forty thousand, forty-three".