9999400002 has 16 divisors (see below), whose sum is σ = 20051020800. Its totient is φ = 3324429872.

The previous prime is 9999399967. The next prime is 9999400003. The reversal of 9999400002 is 2000049999.

It is not an unprimeable number, because it can be changed into a prime (9999400003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173377 + ... + 2177972.

It is an arithmetic number, because the mean of its divisors is an integer number (1253188800).

Almost surely, 2^9999400002 is an apocalyptic number.

9999400002 is an abundant number, since it is smaller than the sum of its proper divisors (10051620798).

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

9999400002 is a wasteful number, since it uses less digits than its factorization.

9999400002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351737.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 9999400002 is about 99996.9999649989. Note that the first 4 decimals coincide. The cubic root of 9999400002 is about 2154.3916006199.

The spelling of 9999400002 in words is "nine billion, nine hundred ninety-nine million, four hundred thousand, two".