9909402 has 16 divisors (see below), whose sum is σ = 20984832. Its totient is φ = 3108800.

The previous prime is 9909401. The next prime is 9909407. The reversal of 9909402 is 2049099.

It is a happy number.

9909402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9909401) 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, 48474 + ... + 48677.

It is an arithmetic number, because the mean of its divisors is an integer number (1311552).

Almost surely, 2^9909402 is an apocalyptic number.

9909402 is an abundant number, since it is smaller than the sum of its proper divisors (11075430).

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

9909402 is a wasteful number, since it uses less digits than its factorization.

9909402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97173.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 9909402 is about 3147.9202658263. The cubic root of 9909402 is about 214.7908692962.

The spelling of 9909402 in words is "nine million, nine hundred nine thousand, four hundred two".