210040404 has 48 divisors (see below), whose sum is σ = 561456000. Its totient is φ = 59867136.

The previous prime is 210040361. The next prime is 210040427. The reversal of 210040404 is 404040012.

210040404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34932 + ... + 40500.

It is an arithmetic number, because the mean of its divisors is an integer number (11697000).

Almost surely, 2^210040404 is an apocalyptic number.

It is an amenable number.

210040404 is an abundant number, since it is smaller than the sum of its proper divisors (351415596).

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

210040404 is a wasteful number, since it uses less digits than its factorization.

210040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032 (or 6030 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 210040404 is about 14492.7707495841. The cubic root of 210040404 is about 594.4303131846.

Adding to 210040404 its reverse (404040012), we get a palindrome (614080416).

The spelling of 210040404 in words is "two hundred ten million, forty thousand, four hundred four".