212276720 has 20 divisors (see below), whose sum is σ = 493543560. Its totient is φ = 84910656.

The previous prime is 212276719. The next prime is 212276731. The reversal of 212276720 is 27672212.

212276720 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 (20).

It is a super-2 number, since 2×212276720² = 90122811707916800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326650 + ... + 1326809.

It is an arithmetic number, because the mean of its divisors is an integer number (24677178).

Almost surely, 2^212276720 is an apocalyptic number.

212276720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212276720 is an abundant number, since it is smaller than the sum of its proper divisors (281266840).

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

212276720 is a wasteful number, since it uses less digits than its factorization.

212276720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653472 (or 2653466 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 212276720 is about 14569.7192835003. The cubic root of 212276720 is about 596.5325180698.

The spelling of 212276720 in words is "two hundred twelve million, two hundred seventy-six thousand, seven hundred twenty".