212441280 has 168 divisors, whose sum is σ = 713030832. Its totient is φ = 53581824.

The previous prime is 212441267. The next prime is 212441303. The reversal of 212441280 is 82144212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 212441280.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 346254 + ... + 346866.

Almost surely, 2^212441280 is an apocalyptic number.

212441280 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 212441280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356515416).

212441280 is an abundant number, since it is smaller than the sum of its proper divisors (500589552).

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

212441280 is a wasteful number, since it uses less digits than its factorization.

212441280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 212441280 is about 14575.3655185728. The cubic root of 212441280 is about 596.6866251486.

Adding to 212441280 its reverse (82144212), we get a palindrome (294585492).

The spelling of 212441280 in words is "two hundred twelve million, four hundred forty-one thousand, two hundred eighty".