99840354 has 32 divisors (see below), whose sum is σ = 213627456. Its totient is φ = 30996480.

The previous prime is 99840353. The next prime is 99840409. The reversal of 99840354 is 45304899.

It is not an unprimeable number, because it can be changed into a prime (99840353) 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, 4849 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (6675858).

Almost surely, 2^99840354 is an apocalyptic number.

99840354 is an abundant number, since it is smaller than the sum of its proper divisors (113787102).

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

99840354 is a wasteful number, since it uses less digits than its factorization.

99840354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 99840354 is about 9992.0145115987. The cubic root of 99840354 is about 463.9117481038.

The spelling of 99840354 in words is "ninety-nine million, eight hundred forty thousand, three hundred fifty-four".