2439493947 has 36 divisors (see below), whose sum is σ = 3878506632. Its totient is φ = 1476446400.

The previous prime is 2439493909. The next prime is 2439493957. The reversal of 2439493947 is 7493949342.

It is a happy number.

2439493947 is a `hidden beast` number, since 243 + 9 + 4 + 9 + 394 + 7 = 666.

It is not a de Polignac number, because 2439493947 - 2²⁶ = 2372385083 is a prime.

It is a super-2 number, since 2×2439493947² = 11902261434899277618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2439493893 and 2439493902.

It is not an unprimeable number, because it can be changed into a prime (2439493907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1274263 + ... + 1276175.

Almost surely, 2^2439493947 is an apocalyptic number.

2439493947 is a deficient number, since it is larger than the sum of its proper divisors (1439012685).

2439493947 is a wasteful number, since it uses less digits than its factorization.

2439493947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112 (or 3098 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 2439493947 is about 49391.2335035277. The cubic root of 2439493947 is about 1346.1700219142.

It can be divided in two parts, 24394 and 93947, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 2439493947 in words is "two billion, four hundred thirty-nine million, four hundred ninety-three thousand, nine hundred forty-seven".