210414400 has 84 divisors (see below), whose sum is σ = 591746848. Its totient is φ = 72138240.

The previous prime is 210414377. The next prime is 210414403. The reversal of 210414400 is 4414012.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210414403) 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 11 ways as a sum of consecutive naturals, for example, 1807 + ... + 20593.

Almost surely, 2^210414400 is an apocalyptic number.

210414400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210414400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295873424).

210414400 is an abundant number, since it is smaller than the sum of its proper divisors (381332448).

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

210414400 is a wasteful number, since it uses less digits than its factorization.

210414400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18816 (or 18801 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 210414400 is about 14505.6678577720. The cubic root of 210414400 is about 594.7829163586.

Adding to 210414400 its reverse (4414012), we get a palindrome (214828412).

The spelling of 210414400 in words is "two hundred ten million, four hundred fourteen thousand, four hundred".