394201056 has 48 divisors (see below), whose sum is σ = 1089244800. Its totient is φ = 124483968.

The previous prime is 394201051. The next prime is 394201057. The reversal of 394201056 is 650102493.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394201051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 106236 + ... + 109883.

It is an arithmetic number, because the mean of its divisors is an integer number (22692600).

Almost surely, 2^394201056 is an apocalyptic number.

It is an amenable number.

394201056 is an abundant number, since it is smaller than the sum of its proper divisors (695043744).

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

394201056 is a wasteful number, since it uses less digits than its factorization.

394201056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216151 (or 216143 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 394201056 is about 19854.4971228183. The cubic root of 394201056 is about 733.2283713871.

The spelling of 394201056 in words is "three hundred ninety-four million, two hundred one thousand, fifty-six".