30340223 has 4 divisors (see below), whose sum is σ = 32124960. Its totient is φ = 28555488.

The previous prime is 30340201. The next prime is 30340229. The reversal of 30340223 is 32204303.

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 30340223 - 2¹⁸ = 30078079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1784719 = 30340223 / (3 + 0 + 3 + 4 + 0 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340229) 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, 892343 + ... + 892376.

It is an arithmetic number, because the mean of its divisors is an integer number (8031240).

Almost surely, 2^30340223 is an apocalyptic number.

30340223 is a deficient number, since it is larger than the sum of its proper divisors (1784737).

30340223 is a wasteful number, since it uses less digits than its factorization.

30340223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784736.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 30340223 is about 5508.1959841676. The cubic root of 30340223 is about 311.8934513175.

Adding to 30340223 its reverse (32204303), we get a palindrome (62544526).

The spelling of 30340223 in words is "thirty million, three hundred forty thousand, two hundred twenty-three".