9940487472 has 60 divisors (see below), whose sum is σ = 27876415944. Its totient is φ = 3306723840.

The previous prime is 9940487449. The next prime is 9940487483. The reversal of 9940487472 is 2747840499.

It is a happy number.

9940487472 is a `hidden beast` number, since 9 + 94 + 0 + 4 + 87 + 472 = 666.

9940487472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408 + ... + 141000.

Almost surely, 2^9940487472 is an apocalyptic number.

It is an amenable number.

9940487472 is an abundant number, since it is smaller than the sum of its proper divisors (17935928472).

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

9940487472 is a wasteful number, since it uses less digits than its factorization.

9940487472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141098 (or 141089 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 9940487472 is about 99701.9933200937. The cubic root of 9940487472 is about 2150.1523217843.

The spelling of 9940487472 in words is "nine billion, nine hundred forty million, four hundred eighty-seven thousand, four hundred seventy-two".