30753442 has 8 divisors (see below), whose sum is σ = 48843756. Its totient is φ = 14472192.

The previous prime is 30753439. The next prime is 30753449. The reversal of 30753442 is 24435703.

It can be written as a sum of positive squares in 2 ways, for example, as 28955161 + 1798281 = 5381^2 + 1341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30753442.

It is not an unprimeable number, because it can be changed into a prime (30753449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452223 + ... + 452290.

Almost surely, 2^30753442 is an apocalyptic number.

30753442 is a deficient number, since it is larger than the sum of its proper divisors (18090314).

30753442 is a wasteful number, since it uses less digits than its factorization.

30753442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904532.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 30753442 is about 5545.5785992086. The cubic root of 30753442 is about 313.3030167841.

The spelling of 30753442 in words is "thirty million, seven hundred fifty-three thousand, four hundred forty-two".