212274500 has 24 divisors (see below), whose sum is σ = 463608600. Its totient is φ = 84909600.

The previous prime is 212274493. The next prime is 212274511. The reversal of 212274500 is 5472212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12730624 + 199543876 = 3568^2 + 14126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211775 + ... + 212774.

It is an arithmetic number, because the mean of its divisors is an integer number (19317025).

Almost surely, 2^212274500 is an apocalyptic number.

212274500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212274500 is an abundant number, since it is smaller than the sum of its proper divisors (251334100).

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

212274500 is a wasteful number, since it uses less digits than its factorization.

212274500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424568 (or 424556 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 212274500 is about 14569.6430978936. The cubic root of 212274500 is about 596.5304385407.

The spelling of 212274500 in words is "two hundred twelve million, two hundred seventy-four thousand, five hundred".