9993475940 has 24 divisors (see below), whose sum is σ = 23984342592. Its totient is φ = 3426334560.

The previous prime is 9993475937. The next prime is 9993475967. The reversal of 9993475940 is 495743999.

It is a super-2 number, since 2×9993475940² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9993475940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35690846 + ... + 35691125.

It is an arithmetic number, because the mean of its divisors is an integer number (999347608).

Almost surely, 2^9993475940 is an apocalyptic number.

It is an amenable number.

9993475940 is an abundant number, since it is smaller than the sum of its proper divisors (13990866652).

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

9993475940 is a wasteful number, since it uses less digits than its factorization.

9993475940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71381987 (or 71381985 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 59.

The square root of 9993475940 is about 99967.3743778439. The cubic root of 9993475940 is about 2153.9660660666.

The spelling of 9993475940 in words is "nine billion, nine hundred ninety-three million, four hundred seventy-five thousand, nine hundred forty".