30043423 has 4 divisors (see below), whose sum is σ = 30309408. Its totient is φ = 29777440.

The previous prime is 30043399. The next prime is 30043439. The reversal of 30043423 is 32434003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30043423 - 2²¹ = 27946271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30043423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30043483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132823 + ... + 133048.

It is an arithmetic number, because the mean of its divisors is an integer number (7577352).

Almost surely, 2^30043423 is an apocalyptic number.

30043423 is a deficient number, since it is larger than the sum of its proper divisors (265985).

30043423 is a wasteful number, since it uses less digits than its factorization.

30043423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265984.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 30043423 is about 5481.1881011328. The cubic root of 30043423 is about 310.8730953853.

Adding to 30043423 its reverse (32434003), we get a palindrome (62477426).

The spelling of 30043423 in words is "thirty million, forty-three thousand, four hundred twenty-three".