212541400 has 24 divisors (see below), whose sum is σ = 494159220. Its totient is φ = 85016480.

The previous prime is 212541383. The next prime is 212541403. The reversal of 212541400 is 4145212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212541403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 531154 + ... + 531553.

Almost surely, 2^212541400 is an apocalyptic number.

212541400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212541400 is an abundant number, since it is smaller than the sum of its proper divisors (281617820).

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

212541400 is a wasteful number, since it uses less digits than its factorization.

212541400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062723 (or 1062714 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 212541400 is about 14578.7996762422. The cubic root of 212541400 is about 596.7803465486.

Adding to 212541400 its reverse (4145212), we get a palindrome (216686612).

The spelling of 212541400 in words is "two hundred twelve million, five hundred forty-one thousand, four hundred".