30243442 has 16 divisors (see below), whose sum is σ = 48180960. Its totient is φ = 14188608.

The previous prime is 30243431. The next prime is 30243449. The reversal of 30243442 is 24434203.

It is not an unprimeable number, because it can be changed into a prime (30243449) 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, 11713 + ... + 14059.

It is an arithmetic number, because the mean of its divisors is an integer number (3011310).

Almost surely, 2^30243442 is an apocalyptic number.

30243442 is a deficient number, since it is larger than the sum of its proper divisors (17937518).

30243442 is a wasteful number, since it uses less digits than its factorization.

30243442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 30243442 is about 5499.4037858662. The cubic root of 30243442 is about 311.5614661419.

Adding to 30243442 its reverse (24434203), we get a palindrome (54677645).

The spelling of 30243442 in words is "thirty million, two hundred forty-three thousand, four hundred forty-two".