9990230 has 8 divisors (see below), whose sum is σ = 17982432. Its totient is φ = 3996088.

The previous prime is 9990221. The next prime is 9990251. The reversal of 9990230 is 320999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 9 + 9³ + 9⁴ + 0 + 2²³ + 3¹³ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499502 + ... + 499521.

It is an arithmetic number, because the mean of its divisors is an integer number (2247804).

Almost surely, 2^9990230 is an apocalyptic number.

9990230 is a deficient number, since it is larger than the sum of its proper divisors (7992202).

9990230 is a wasteful number, since it uses less digits than its factorization.

9990230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999030.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 9990230 is about 3160.7325100362. The cubic root of 9990230 is about 215.3732833847.

The spelling of 9990230 in words is "nine million, nine hundred ninety thousand, two hundred thirty".