99189340 has 48 divisors (see below), whose sum is σ = 218308608. Its totient is φ = 37784384.

The previous prime is 99189323. The next prime is 99189353. The reversal of 99189340 is 4398199.

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 15 ways as a sum of consecutive naturals, for example, 175899 + ... + 176461.

It is an arithmetic number, because the mean of its divisors is an integer number (4548096).

Almost surely, 2^99189340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99189340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109154304).

99189340 is an abundant number, since it is smaller than the sum of its proper divisors (119119268).

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

99189340 is a wasteful number, since it uses less digits than its factorization.

99189340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 99189340 is about 9959.3845191357. The cubic root of 99189340 is about 462.9012286450.

The spelling of 99189340 in words is "ninety-nine million, one hundred eighty-nine thousand, three hundred forty".