212274244 has 24 divisors (see below), whose sum is σ = 457206848. Its totient is φ = 83976480.

The previous prime is 212274221. The next prime is 212274253. The reversal of 212274244 is 442472212.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 291222 + ... + 291949.

Almost surely, 2^212274244 is an apocalyptic number.

It is an amenable number.

212274244 is an abundant number, since it is smaller than the sum of its proper divisors (244932604).

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

212274244 is a wasteful number, since it uses less digits than its factorization.

212274244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583195 (or 583193 counting only the distinct ones).

The product of its digits is 7168, while the sum is 28.

The square root of 212274244 is about 14569.6343125008. The cubic root of 212274244 is about 596.5301987383.

The spelling of 212274244 in words is "two hundred twelve million, two hundred seventy-four thousand, two hundred forty-four".