305144025424 has 40 divisors (see below), whose sum is σ = 675745658240. Its totient is φ = 130762539648.

The previous prime is 305144025409. The next prime is 305144025437. The reversal of 305144025424 is 424520441503.

It is a super-2 number, since 2×305144025424² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305144025424.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 992437 + ... + 1263019.

It is an arithmetic number, because the mean of its divisors is an integer number (16893641456).

Almost surely, 2^305144025424 is an apocalyptic number.

It is an amenable number.

305144025424 is an abundant number, since it is smaller than the sum of its proper divisors (370601632816).

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

305144025424 is a wasteful number, since it uses less digits than its factorization.

305144025424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280667 (or 280661 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 305144025424 its reverse (424520441503), we get a palindrome (729664466927).

The spelling of 305144025424 in words is "three hundred five billion, one hundred forty-four million, twenty-five thousand, four hundred twenty-four".