30009423 has 8 divisors (see below), whose sum is σ = 40409136. Its totient is φ = 19808000.

The previous prime is 30009409. The next prime is 30009443. The reversal of 30009423 is 32490003.

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

It is a cyclic number.

It is not a de Polignac number, because 30009423 - 2⁴ = 30009407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30009423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30009443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49218 + ... + 49823.

It is an arithmetic number, because the mean of its divisors is an integer number (5051142).

Almost surely, 2^30009423 is an apocalyptic number.

30009423 is a deficient number, since it is larger than the sum of its proper divisors (10399713).

30009423 is a wasteful number, since it uses less digits than its factorization.

30009423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99145.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30009423 is about 5478.0857057918. The cubic root of 30009423 is about 310.7557799141.

Adding to 30009423 its reverse (32490003), we get a palindrome (62499426).

The spelling of 30009423 in words is "thirty million, nine thousand, four hundred twenty-three".