99129342 has 32 divisors (see below), whose sum is σ = 215212032. Its totient is φ = 30258144.

The previous prime is 99129323. The next prime is 99129347. The reversal of 99129342 is 24392199.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 99129342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99129347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4903 + ... + 14909.

It is an arithmetic number, because the mean of its divisors is an integer number (6725376).

Almost surely, 2^99129342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99129342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107606016).

99129342 is an abundant number, since it is smaller than the sum of its proper divisors (116082690).

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

99129342 is a wasteful number, since it uses less digits than its factorization.

99129342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152.

The product of its digits is 34992, while the sum is 39.

The square root of 99129342 is about 9956.3719295735. The cubic root of 99129342 is about 462.8078760406.

The spelling of 99129342 in words is "ninety-nine million, one hundred twenty-nine thousand, three hundred forty-two".