3031938493 has 4 divisors (see below), whose sum is σ = 3061957788. Its totient is φ = 3001919200.

The previous prime is 3031938461. The next prime is 3031938517. The reversal of 3031938493 is 3948391303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1304871129 + 1727067364 = 36123^2 + 41558^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031938493 - 2⁵ = 3031938461 is a prime.

It is a super-2 number, since 2×3031938493² = 18385302050670222098, 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 (3031938443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15009496 + ... + 15009697.

It is an arithmetic number, because the mean of its divisors is an integer number (765489447).

Almost surely, 2^3031938493 is an apocalyptic number.

It is an amenable number.

3031938493 is a deficient number, since it is larger than the sum of its proper divisors (30019295).

3031938493 is a wasteful number, since it uses less digits than its factorization.

3031938493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30019294.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 3031938493 is about 55063.0410802019. The cubic root of 3031938493 is about 1447.3496560940.

The spelling of 3031938493 in words is "three billion, thirty-one million, nine hundred thirty-eight thousand, four hundred ninety-three".