99012450 has 96 divisors (see below), whose sum is σ = 257126400. Its totient is φ = 25185600.

The previous prime is 99012449. The next prime is 99012451. The reversal of 99012450 is 5421099.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99012449) and next prime (99012451).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (99012451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 497451 + ... + 497649.

It is an arithmetic number, because the mean of its divisors is an integer number (2678400).

Almost surely, 2^99012450 is an apocalyptic number.

It is a pronic number, being equal to 9950×9951.

It is a practical number, because each smaller number is the sum of distinct divisors of 99012450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128563200).

99012450 is an abundant number, since it is smaller than the sum of its proper divisors (158113950).

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

99012450 is a wasteful number, since it uses less digits than its factorization.

99012450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 99012450 is about 9950.4999874378. The cubic root of 99012450 is about 462.6258921961.

The spelling of 99012450 in words is "ninety-nine million, twelve thousand, four hundred fifty".