9939490572 has 96 divisors (see below), whose sum is σ = 27953662464. Its totient is φ = 2711526400.

The previous prime is 9939490571. The next prime is 9939490573. The reversal of 9939490572 is 2750949399.

It is an interprime number because it is at equal distance from previous prime (9939490571) and next prime (9939490573).

It is not an unprimeable number, because it can be changed into a prime (9939490571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44679 + ... + 147902.

It is an arithmetic number, because the mean of its divisors is an integer number (291183984).

Almost surely, 2^9939490572 is an apocalyptic number.

9939490572 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9939490572 is an abundant number, since it is smaller than the sum of its proper divisors (18014171892).

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

9939490572 is a wasteful number, since it uses less digits than its factorization.

9939490572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192639 (or 192637 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 57.

The square root of 9939490572 is about 99696.9937962023. The cubic root of 9939490572 is about 2150.0804420596.

The spelling of 9939490572 in words is "nine billion, nine hundred thirty-nine million, four hundred ninety thousand, five hundred seventy-two".