99440430 has 16 divisors (see below), whose sum is σ = 238657104. Its totient is φ = 26517440.

The previous prime is 99440401. The next prime is 99440437. The reversal of 99440430 is 3404499.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 99440391 and 99440400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99440437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657311 + ... + 1657370.

It is an arithmetic number, because the mean of its divisors is an integer number (14916069).

Almost surely, 2^99440430 is an apocalyptic number.

99440430 is an abundant number, since it is smaller than the sum of its proper divisors (139216674).

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

99440430 is a wasteful number, since it uses less digits than its factorization.

99440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314691.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 99440430 is about 9971.9822502850. The cubic root of 99440430 is about 463.2914988481.

The spelling of 99440430 in words is "ninety-nine million, four hundred forty thousand, four hundred thirty".