99574440 has 256 divisors, whose sum is σ = 381542400. Its totient is φ = 20238336.

The previous prime is 99574427. The next prime is 99574441. The reversal of 99574440 is 4447599.

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 = 99574392 and 99574401.

It is not an unprimeable number, because it can be changed into a prime (99574441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 271137 + ... + 271503.

It is an arithmetic number, because the mean of its divisors is an integer number (1490400).

Almost surely, 2^99574440 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 99574440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190771200).

99574440 is an abundant number, since it is smaller than the sum of its proper divisors (281967960).

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

99574440 is a wasteful number, since it uses less digits than its factorization.

99574440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 99574440 is about 9978.6993140389. The cubic root of 99574440 is about 463.4995223012.

The spelling of 99574440 in words is "ninety-nine million, five hundred seventy-four thousand, four hundred forty".