212452394 has 32 divisors (see below), whose sum is σ = 400384512. Its totient is φ = 82134000.

The previous prime is 212452381. The next prime is 212452421. The reversal of 212452394 is 493254212.

It is a super-3 number, since 3×212452394³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212452394.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14909 + ... + 25439.

It is an arithmetic number, because the mean of its divisors is an integer number (12512016).

Almost surely, 2^212452394 is an apocalyptic number.

212452394 is a deficient number, since it is larger than the sum of its proper divisors (187932118).

212452394 is a wasteful number, since it uses less digits than its factorization.

212452394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682.

The product of its digits is 17280, while the sum is 32.

The square root of 212452394 is about 14575.7467733218. The cubic root of 212452394 is about 596.6970303133.

The spelling of 212452394 in words is "two hundred twelve million, four hundred fifty-two thousand, three hundred ninety-four".