53430444 has 36 divisors (see below), whose sum is σ = 135968560. Its totient is φ = 17690400.

The previous prime is 53430437. The next prime is 53430469. The reversal of 53430444 is 44403435.

53430444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 522 + ... + 10350.

Almost surely, 2^53430444 is an apocalyptic number.

It is an amenable number.

53430444 is an abundant number, since it is smaller than the sum of its proper divisors (82538116).

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

53430444 is a wasteful number, since it uses less digits than its factorization.

53430444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9990 (or 9985 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 53430444 is about 7309.6131224573. The cubic root of 53430444 is about 376.6427346200.

Adding to 53430444 its reverse (44403435), we get a palindrome (97833879).

The spelling of 53430444 in words is "fifty-three million, four hundred thirty thousand, four hundred forty-four".