4139970431 has 4 divisors (see below), whose sum is σ = 4192375200. Its totient is φ = 4087565664.

The previous prime is 4139970403. The next prime is 4139970437. The reversal of 4139970431 is 1340799314.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1340799314 = 2 ⋅670399657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4139970431 is a prime.

It is a super-2 number, since 2×4139970431² = 34278710339108651522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4139970437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26202266 + ... + 26202423.

It is an arithmetic number, because the mean of its divisors is an integer number (1048093800).

Almost surely, 2^4139970431 is an apocalyptic number.

4139970431 is a deficient number, since it is larger than the sum of its proper divisors (52404769).

4139970431 is an equidigital number, since it uses as much as digits as its factorization.

4139970431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52404768.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 4139970431 is about 64342.6019912157. The cubic root of 4139970431 is about 1605.7049508200.

The spelling of 4139970431 in words is "four billion, one hundred thirty-nine million, nine hundred seventy thousand, four hundred thirty-one".