394003011 has 4 divisors (see below), whose sum is σ = 525337352. Its totient is φ = 262668672.

The previous prime is 394003009. The next prime is 394003031. The reversal of 394003011 is 110300493.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 394003011 - 2¹ = 394003009 is a prime.

It is a super-2 number, since 2×394003011² = 310476745354132242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394003031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65667166 + ... + 65667171.

It is an arithmetic number, because the mean of its divisors is an integer number (131334338).

Almost surely, 2^394003011 is an apocalyptic number.

394003011 is a deficient number, since it is larger than the sum of its proper divisors (131334341).

394003011 is a wasteful number, since it uses less digits than its factorization.

394003011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131334340.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 394003011 is about 19849.5090871286. The cubic root of 394003011 is about 733.1055605055.

The spelling of 394003011 in words is "three hundred ninety-four million, three thousand, eleven".