212303264240 has 40 divisors (see below), whose sum is σ = 493782086400. Its totient is φ = 84890854656.

The previous prime is 212303264227. The next prime is 212303264267. The reversal of 212303264240 is 42462303212.

It is a happy number.

212303264240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×212303264240³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250640 + ... + 698159.

It is an arithmetic number, because the mean of its divisors is an integer number (12344552160).

Almost surely, 2^212303264240 is an apocalyptic number.

212303264240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212303264240 is an abundant number, since it is smaller than the sum of its proper divisors (281478822160).

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

212303264240 is a wasteful number, since it uses less digits than its factorization.

212303264240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951609 (or 951603 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 212303264240 its reverse (42462303212), we get a palindrome (254765567452).

The spelling of 212303264240 in words is "two hundred twelve billion, three hundred three million, two hundred sixty-four thousand, two hundred forty".