9490239431 has 4 divisors (see below), whose sum is σ = 9490488792. Its totient is φ = 9489990072.

The previous prime is 9490239397. The next prime is 9490239439. The reversal of 9490239431 is 1349320949.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1349320949 = 751 ⋅1796699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9490239431 is a prime.

It is a super-2 number, since 2×9490239431² (a number of 21 digits) 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 (9490239439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54380 + ... + 148113.

It is an arithmetic number, because the mean of its divisors is an integer number (2372622198).

Almost surely, 2^9490239431 is an apocalyptic number.

9490239431 is a deficient number, since it is larger than the sum of its proper divisors (249361).

9490239431 is a wasteful number, since it uses less digits than its factorization.

9490239431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249360.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 9490239431 is about 97417.8599179842. The cubic root of 9490239431 is about 2117.1862093941.

The spelling of 9490239431 in words is "nine billion, four hundred ninety million, two hundred thirty-nine thousand, four hundred thirty-one".