8990430 has 16 divisors (see below), whose sum is σ = 21577104. Its totient is φ = 2397440.

The previous prime is 8990413. The next prime is 8990431. The reversal of 8990430 is 340998.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8990391 and 8990400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8990431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149811 + ... + 149870.

It is an arithmetic number, because the mean of its divisors is an integer number (1348569).

Almost surely, 2^8990430 is an apocalyptic number.

8990430 is an abundant number, since it is smaller than the sum of its proper divisors (12586674).

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

8990430 is a wasteful number, since it uses less digits than its factorization.

8990430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299691.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 8990430 is about 2998.4045757703. The cubic root of 8990430 is about 207.9346287420.

The spelling of 8990430 in words is "eight million, nine hundred ninety thousand, four hundred thirty".