99415242 has 64 divisors (see below), whose sum is σ = 229461120. Its totient is φ = 31881600.

The previous prime is 99415237. The next prime is 99415249. The reversal of 99415242 is 24251499.

99415242 is a `hidden beast` number, since 99 + 41 + 524 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 99415197 and 99415206.

It is not an unprimeable number, because it can be changed into a prime (99415249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183492 + ... + 184032.

It is an arithmetic number, because the mean of its divisors is an integer number (3585330).

Almost surely, 2^99415242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99415242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114730560).

99415242 is an abundant number, since it is smaller than the sum of its proper divisors (130045878).

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

99415242 is a wasteful number, since it uses less digits than its factorization.

99415242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 670 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 99415242 is about 9970.7192318308. The cubic root of 99415242 is about 463.2523787046.

The spelling of 99415242 in words is "ninety-nine million, four hundred fifteen thousand, two hundred forty-two".