9403749272 has 32 divisors (see below), whose sum is σ = 18620340480. Its totient is φ = 4443252000.

The previous prime is 9403749269. The next prime is 9403749301. The reversal of 9403749272 is 2729473049.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 292604 + ... + 323147.

It is an arithmetic number, because the mean of its divisors is an integer number (581885640).

Almost surely, 2^9403749272 is an apocalyptic number.

9403749272 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9403749272 is a deficient number, since it is larger than the sum of its proper divisors (9216591208).

9403749272 is a wasteful number, since it uses less digits than its factorization.

9403749272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615863 (or 615859 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 9403749272 is about 96972.9306146824. The cubic root of 9403749272 is about 2110.7348482283.

The spelling of 9403749272 in words is "nine billion, four hundred three million, seven hundred forty-nine thousand, two hundred seventy-two".