3949043238 has 48 divisors (see below), whose sum is σ = 9875432736. Its totient is φ = 1117123200.

The previous prime is 3949043233. The next prime is 3949043243. The reversal of 3949043238 is 8323409493.

It is an interprime number because it is at equal distance from previous prime (3949043233) and next prime (3949043243).

It is a junction number, because it is equal to n+sod(n) for n = 3949043193 and 3949043202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949043233) 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 23 ways as a sum of consecutive naturals, for example, 142431 + ... + 167882.

It is an arithmetic number, because the mean of its divisors is an integer number (205738182).

Almost surely, 2^3949043238 is an apocalyptic number.

3949043238 is an abundant number, since it is smaller than the sum of its proper divisors (5926389498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3949043238 is a wasteful number, since it uses less digits than its factorization.

3949043238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310429 (or 310426 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 3949043238 is about 62841.4133991272. The cubic root of 3949043238 is about 1580.6314890160.

It can be divided in two parts, 39490 and 43238, that added together give a palindrome (82728).

The spelling of 3949043238 in words is "three billion, nine hundred forty-nine million, forty-three thousand, two hundred thirty-eight".