394102004 has 12 divisors (see below), whose sum is σ = 706500228. Its totient is φ = 192244800.

The previous prime is 394101949. The next prime is 394102019. The reversal of 394102004 is 400201493.

It can be written as a sum of positive squares in 2 ways, for example, as 18905104 + 375196900 = 4348^2 + 19370^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1201367 + ... + 1201694.

It is an arithmetic number, because the mean of its divisors is an integer number (58875019).

Almost surely, 2^394102004 is an apocalyptic number.

It is an amenable number.

394102004 is a deficient number, since it is larger than the sum of its proper divisors (312398224).

394102004 is a wasteful number, since it uses less digits than its factorization.

394102004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403106 (or 2403104 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 394102004 is about 19852.0025186378. The cubic root of 394102004 is about 733.1669527958.

Adding to 394102004 its reverse (400201493), we get a palindrome (794303497).

It can be divided in two parts, 39410 and 2004, that added together give a palindrome (41414).

The spelling of 394102004 in words is "three hundred ninety-four million, one hundred two thousand, four".