2439493946 has 32 divisors (see below), whose sum is σ = 3744694800. Its totient is φ = 1191730176.

The previous prime is 2439493909. The next prime is 2439493957. The reversal of 2439493946 is 6493949342.

It can be written as a sum of positive squares in 8 ways, for example, as 1245031225 + 1194462721 = 35285^2 + 34561^2 .

It is a super-2 number, since 2×2439493946² = 11902261425141301832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 15 ways as a sum of consecutive naturals, for example, 6989780 + ... + 6990128.

Almost surely, 2^2439493946 is an apocalyptic number.

2439493946 is a deficient number, since it is larger than the sum of its proper divisors (1305200854).

2439493946 is a wasteful number, since it uses less digits than its factorization.

2439493946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its digits is 5038848, while the sum is 53.

The square root of 2439493946 is about 49391.2334934045. The cubic root of 2439493946 is about 1346.1700217302.

The spelling of 2439493946 in words is "two billion, four hundred thirty-nine million, four hundred ninety-three thousand, nine hundred forty-six".