394396101 has 16 divisors (see below), whose sum is σ = 637408320. Its totient is φ = 239027760.

The previous prime is 394396069. The next prime is 394396109. The reversal of 394396101 is 101693493.

394396101 is a `hidden beast` number, since 3 + 9 + 4 + 39 + 610 + 1 = 666.

It is not a de Polignac number, because 394396101 - 2⁵ = 394396069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394396109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663670 + ... + 664263.

It is an arithmetic number, because the mean of its divisors is an integer number (39838020).

Almost surely, 2^394396101 is an apocalyptic number.

It is an amenable number.

394396101 is a deficient number, since it is larger than the sum of its proper divisors (243012219).

394396101 is a wasteful number, since it uses less digits than its factorization.

394396101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327953 (or 1327947 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 394396101 is about 19859.4083748736. The cubic root of 394396101 is about 733.3492817239.

It can be divided in two parts, 394 and 396101, that added together give a triangular number (396495 = T₈₉₀).

The spelling of 394396101 in words is "three hundred ninety-four million, three hundred ninety-six thousand, one hundred one".