30440234 has 32 divisors (see below), whose sum is σ = 53136000. Its totient is φ = 12925440.

The previous prime is 30440213. The next prime is 30440239. The reversal of 30440234 is 43204403.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30440239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74222 + ... + 74630.

It is an arithmetic number, because the mean of its divisors is an integer number (1660500).

Almost surely, 2^30440234 is an apocalyptic number.

30440234 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30440234 is a deficient number, since it is larger than the sum of its proper divisors (22695766).

30440234 is a wasteful number, since it uses less digits than its factorization.

30440234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 30440234 is about 5517.2668958462. The cubic root of 30440234 is about 312.2357753761.

Adding to 30440234 its reverse (43204403), we get a palindrome (73644637).

The spelling of 30440234 in words is "thirty million, four hundred forty thousand, two hundred thirty-four".