53400330 has 32 divisors (see below), whose sum is σ = 142401600. Its totient is φ = 14240016.

The previous prime is 53400329. The next prime is 53400341. The reversal of 53400330 is 3300435.

It is a happy number.

53400330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 15 ways as a sum of consecutive naturals, for example, 98620 + ... + 99159.

It is an arithmetic number, because the mean of its divisors is an integer number (4450050).

Almost surely, 2^53400330 is an apocalyptic number.

53400330 is an abundant number, since it is smaller than the sum of its proper divisors (89001270).

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

53400330 is a wasteful number, since it uses less digits than its factorization.

53400330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197795 (or 197789 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 53400330 is about 7307.5529419909. The cubic root of 53400330 is about 376.5719612930.

Adding to 53400330 its reverse (3300435), we get a palindrome (56700765).

The spelling of 53400330 in words is "fifty-three million, four hundred thousand, three hundred thirty".