3031404394 has 16 divisors (see below), whose sum is σ = 4781022120. Its totient is φ = 1439444160.

The previous prime is 3031404379. The next prime is 3031404407. The reversal of 3031404394 is 4934041303.

It can be written as a sum of positive squares in 4 ways, for example, as 985018225 + 2046386169 = 31385^2 + 45237^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424869 + ... + 431944.

Almost surely, 2^3031404394 is an apocalyptic number.

3031404394 is a deficient number, since it is larger than the sum of its proper divisors (1749617726).

3031404394 is a wasteful number, since it uses less digits than its factorization.

3031404394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856905.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 3031404394 is about 55058.1909800894. The cubic root of 3031404394 is about 1447.2646638905.

Adding to 3031404394 its reverse (4934041303), we get a palindrome (7965445697).

The spelling of 3031404394 in words is "three billion, thirty-one million, four hundred four thousand, three hundred ninety-four".