394054785 has 24 divisors (see below), whose sum is σ = 689420160. Its totient is φ = 208195872.

The previous prime is 394054783. The next prime is 394054789. The reversal of 394054785 is 587450493.

It is not a de Polignac number, because 394054785 - 2¹ = 394054783 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 394054785.

It is not an unprimeable number, because it can be changed into a prime (394054783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36105 + ... + 45734.

It is an arithmetic number, because the mean of its divisors is an integer number (28725840).

Almost surely, 2^394054785 is an apocalyptic number.

It is an amenable number.

394054785 is a deficient number, since it is larger than the sum of its proper divisors (295365375).

394054785 is a wasteful number, since it uses less digits than its factorization.

394054785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81957 (or 81954 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 394054785 is about 19850.8132075238. The cubic root of 394054785 is about 733.1376703658.

The spelling of 394054785 in words is "three hundred ninety-four million, fifty-four thousand, seven hundred eighty-five".