30223434 has 32 divisors (see below), whose sum is σ = 61585920. Its totient is φ = 9886832.

The previous prime is 30223373. The next prime is 30223439. The reversal of 30223434 is 43432203.

It is a self number, because there is not a number n which added to its sum of digits gives 30223434.

It is not an unprimeable number, because it can be changed into a prime (30223439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114787 + ... + 115049.

It is an arithmetic number, because the mean of its divisors is an integer number (1924560).

Almost surely, 2^30223434 is an apocalyptic number.

30223434 is an abundant number, since it is smaller than the sum of its proper divisors (31362486).

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

30223434 is a wasteful number, since it uses less digits than its factorization.

30223434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 30223434 is about 5497.5843786158. The cubic root of 30223434 is about 311.4927449407.

Adding to 30223434 its reverse (43432203), we get a palindrome (73655637).

The spelling of 30223434 in words is "thirty million, two hundred twenty-three thousand, four hundred thirty-four".