210416404 has 12 divisors (see below), whose sum is σ = 401704128. Its totient is φ = 95643800.

The previous prime is 210416399. The next prime is 210416407. The reversal of 210416404 is 404614012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210416407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391052 + ... + 2391139.

It is an arithmetic number, because the mean of its divisors is an integer number (33475344).

Almost surely, 2^210416404 is an apocalyptic number.

It is an amenable number.

210416404 is a deficient number, since it is larger than the sum of its proper divisors (191287724).

210416404 is a wasteful number, since it uses less digits than its factorization.

210416404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782206 (or 4782204 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 210416404 is about 14505.7369340547. The cubic root of 210416404 is about 594.7848046026.

It can be divided in two parts, 210 and 416404, that added together give a palindrome (416614).

The spelling of 210416404 in words is "two hundred ten million, four hundred sixteen thousand, four hundred four".