210541604 has 96 divisors (see below), whose sum is σ = 470211840. Its totient is φ = 80289792.

The previous prime is 210541571. The next prime is 210541607. The reversal of 210541604 is 406145012.

It is a self number, because there is not a number n which added to its sum of digits gives 210541604.

It is not an unprimeable number, because it can be changed into a prime (210541607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170484 + ... + 2170580.

It is an arithmetic number, because the mean of its divisors is an integer number (4898040).

Almost surely, 2^210541604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210541604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235105920).

210541604 is an abundant number, since it is smaller than the sum of its proper divisors (259670236).

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

210541604 is a wasteful number, since it uses less digits than its factorization.

210541604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 210541604 is about 14510.0518262341. The cubic root of 210541604 is about 594.9027489761.

Adding to 210541604 its reverse (406145012), we get a palindrome (616686616).

The spelling of 210541604 in words is "two hundred ten million, five hundred forty-one thousand, six hundred four".