99840150 has 144 divisors (see below), whose sum is σ = 293874048. Its totient is φ = 24192000.

The previous prime is 99840113. The next prime is 99840151. The reversal of 99840150 is 5104899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99840151) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 236940 + ... + 237360.

It is an arithmetic number, because the mean of its divisors is an integer number (2040792).

Almost surely, 2^99840150 is an apocalyptic number.

99840150 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 99840150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146937024).

99840150 is an abundant number, since it is smaller than the sum of its proper divisors (194033898).

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

99840150 is a wasteful number, since it uses less digits than its factorization.

99840150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 99840150 is about 9992.0043034418. The cubic root of 99840150 is about 463.9114321391.

The spelling of 99840150 in words is "ninety-nine million, eight hundred forty thousand, one hundred fifty".