212093644 has 24 divisors (see below), whose sum is σ = 426798848. Its totient is φ = 90337680.

The previous prime is 212093639. The next prime is 212093647. The reversal of 212093644 is 446390212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212093647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18672 + ... + 27799.

Almost surely, 2^212093644 is an apocalyptic number.

It is an amenable number.

212093644 is an abundant number, since it is smaller than the sum of its proper divisors (214705204).

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

212093644 is a wasteful number, since it uses less digits than its factorization.

212093644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46645 (or 46643 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 212093644 is about 14563.4351716894. The cubic root of 212093644 is about 596.3609775161.

The spelling of 212093644 in words is "two hundred twelve million, ninety-three thousand, six hundred forty-four".