99409266 has 96 divisors (see below), whose sum is σ = 249080832. Its totient is φ = 28358880.

The previous prime is 99409259. The next prime is 99409279. The reversal of 99409266 is 66290499.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 377851 + ... + 378113.

It is an arithmetic number, because the mean of its divisors is an integer number (2594592).

Almost surely, 2^99409266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99409266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124540416).

99409266 is an abundant number, since it is smaller than the sum of its proper divisors (149671566).

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

99409266 is a wasteful number, since it uses less digits than its factorization.

99409266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 99409266 is about 9970.4195498484. The cubic root of 99409266 is about 463.2430962524.

The spelling of 99409266 in words is "ninety-nine million, four hundred nine thousand, two hundred sixty-six".