394016652 has 36 divisors (see below), whose sum is σ = 997345440. Its totient is φ = 131159712.

The previous prime is 394016621. The next prime is 394016671. The reversal of 394016652 is 256610493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20749 + ... + 34907.

It is an arithmetic number, because the mean of its divisors is an integer number (27704040).

Almost surely, 2^394016652 is an apocalyptic number.

It is an amenable number.

394016652 is an abundant number, since it is smaller than the sum of its proper divisors (603328788).

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

394016652 is a wasteful number, since it uses less digits than its factorization.

394016652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14942 (or 14937 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 394016652 is about 19849.8526946675. The cubic root of 394016652 is about 733.1140208279.

The spelling of 394016652 in words is "three hundred ninety-four million, sixteen thousand, six hundred fifty-two".