394511349 has 4 divisors (see below), whose sum is σ = 526015136. Its totient is φ = 263007564.

The previous prime is 394511311. The next prime is 394511371. The reversal of 394511349 is 943115493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 394511349 - 2⁸ = 394511093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394513349) 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 3 ways as a sum of consecutive naturals, for example, 65751889 + ... + 65751894.

It is an arithmetic number, because the mean of its divisors is an integer number (131503784).

Almost surely, 2^394511349 is an apocalyptic number.

It is an amenable number.

394511349 is a deficient number, since it is larger than the sum of its proper divisors (131503787).

394511349 is a wasteful number, since it uses less digits than its factorization.

394511349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131503786.

The product of its digits is 58320, while the sum is 39.

The square root of 394511349 is about 19862.3097599448. The cubic root of 394511349 is about 733.4207063710.

The spelling of 394511349 in words is "three hundred ninety-four million, five hundred eleven thousand, three hundred forty-nine".