393452412 has 12 divisors (see below), whose sum is σ = 918055656. Its totient is φ = 131150800.

The previous prime is 393452401. The next prime is 393452417. The reversal of 393452412 is 214254393.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393452417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16393839 + ... + 16393862.

It is an arithmetic number, because the mean of its divisors is an integer number (76504638).

Almost surely, 2^393452412 is an apocalyptic number.

It is an amenable number.

393452412 is an abundant number, since it is smaller than the sum of its proper divisors (524603244).

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

393452412 is a wasteful number, since it uses less digits than its factorization.

393452412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32787708 (or 32787706 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 393452412 is about 19835.6349028711. The cubic root of 393452412 is about 732.7639088355.

The spelling of 393452412 in words is "three hundred ninety-three million, four hundred fifty-two thousand, four hundred twelve".