99448440 has 192 divisors, whose sum is σ = 374038560. Its totient is φ = 20966400.

The previous prime is 99448423. The next prime is 99448469. The reversal of 99448440 is 4484499.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 99448392 and 99448401.

It is a congruent 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, 75790 + ... + 77090.

Almost surely, 2^99448440 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 99448440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187019280).

99448440 is an abundant number, since it is smaller than the sum of its proper divisors (274590120).

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

99448440 is a wasteful number, since it uses less digits than its factorization.

99448440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 99448440 is about 9972.3838674612. The cubic root of 99448440 is about 463.3039380048.

It can be divided in two parts, 9 and 9448440, that added together give a palindrome (9448449).

The spelling of 99448440 in words is "ninety-nine million, four hundred forty-eight thousand, four hundred forty".