99029808420 has 192 divisors, whose sum is σ = 305064748800. Its totient is φ = 23905566720.

The previous prime is 99029808379. The next prime is 99029808473. The reversal of 99029808420 is 2480892099.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3191380 + ... + 3222260.

It is an arithmetic number, because the mean of its divisors is an integer number (1588878900).

Almost surely, 2^99029808420 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 99029808420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152532374400).

99029808420 is an abundant number, since it is smaller than the sum of its proper divisors (206034940380).

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

99029808420 is a wasteful number, since it uses less digits than its factorization.

99029808420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31038 (or 31036 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 99029808420 in words is "ninety-nine billion, twenty-nine million, eight hundred eight thousand, four hundred twenty".