212042620 has 12 divisors (see below), whose sum is σ = 445289544. Its totient is φ = 84817040.

The previous prime is 212042609. The next prime is 212042651. The reversal of 212042620 is 26240212.

212042620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5301046 + ... + 5301085.

It is an arithmetic number, because the mean of its divisors is an integer number (37107462).

Almost surely, 2^212042620 is an apocalyptic number.

212042620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212042620 is an abundant number, since it is smaller than the sum of its proper divisors (233246924).

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

212042620 is a wasteful number, since it uses less digits than its factorization.

212042620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10602140 (or 10602138 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212042620 is about 14561.6832818188. The cubic root of 212042620 is about 596.3131509014.

Adding to 212042620 its reverse (26240212), we get a palindrome (238282832).

The spelling of 212042620 in words is "two hundred twelve million, forty-two thousand, six hundred twenty".