99942318 has 96 divisors (see below), whose sum is σ = 263577600. Its totient is φ = 26733888.

The previous prime is 99942317. The next prime is 99942341. The reversal of 99942318 is 81324999.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99942317) 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, 260755 + ... + 261137.

It is an arithmetic number, because the mean of its divisors is an integer number (2745600).

Almost surely, 2^99942318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99942318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131788800).

99942318 is an abundant number, since it is smaller than the sum of its proper divisors (163635282).

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

99942318 is a wasteful number, since it uses less digits than its factorization.

99942318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 99942318 is about 9997.1154839784. The cubic root of 99942318 is about 464.0696208206.

The spelling of 99942318 in words is "ninety-nine million, nine hundred forty-two thousand, three hundred eighteen".