99449648 has 40 divisors (see below), whose sum is σ = 203729520. Its totient is φ = 46897920.

The previous prime is 99449621. The next prime is 99449659. The reversal of 99449648 is 84694499.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 99449648.

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, 83618 + ... + 84798.

It is an arithmetic number, because the mean of its divisors is an integer number (5093238).

Almost surely, 2^99449648 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 99449648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101864760).

99449648 is an abundant number, since it is smaller than the sum of its proper divisors (104279872).

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

99449648 is a wasteful number, since it uses less digits than its factorization.

99449648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1479 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 99449648 is about 9972.4444345406. Note that the first 4 decimals coincide. The cubic root of 99449648 is about 463.3058139145.

The spelling of 99449648 in words is "ninety-nine million, four hundred forty-nine thousand, six hundred forty-eight".