305003871252 has 72 divisors (see below), whose sum is σ = 801551858016. Its totient is φ = 101411738208.

The previous prime is 305003871229. The next prime is 305003871299. The reversal of 305003871252 is 252178300503.

It is a happy number.

305003871252 is a `hidden beast` number, since 3 + 0 + 500 + 38 + 71 + 2 + 52 = 666.

It is a super-2 number, since 2×305003871252² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9318 + ... + 781085.

Almost surely, 2^305003871252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305003871252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400775929008).

305003871252 is an abundant number, since it is smaller than the sum of its proper divisors (496547986764).

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

305003871252 is a wasteful number, since it uses less digits than its factorization.

305003871252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790819 (or 790805 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 305003871252 in words is "three hundred five billion, three million, eight hundred seventy-one thousand, two hundred fifty-two".