210223404 has 48 divisors (see below), whose sum is σ = 568727040. Its totient is φ = 67026960.

The previous prime is 210223379. The next prime is 210223423. The reversal of 210223404 is 404322012.

210223404 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

210223404 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39832 + ... + 44799.

It is an arithmetic number, because the mean of its divisors is an integer number (11848480).

Almost surely, 2^210223404 is an apocalyptic number.

It is an amenable number.

210223404 is an abundant number, since it is smaller than the sum of its proper divisors (358503636).

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

210223404 is a wasteful number, since it uses less digits than its factorization.

210223404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84667 (or 84659 counting only the distinct ones).

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

The square root of 210223404 is about 14499.0828675472. The cubic root of 210223404 is about 594.6028977102.

Adding to 210223404 its reverse (404322012), we get a palindrome (614545416).

The spelling of 210223404 in words is "two hundred ten million, two hundred twenty-three thousand, four hundred four".