305142345644 has 12 divisors (see below), whose sum is σ = 544074560064. Its totient is φ = 149692471344.

The previous prime is 305142345593. The next prime is 305142345647. The reversal of 305142345644 is 446543241503.

It is a super-2 number, since 2×305142345644² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305142345647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719675132 + ... + 719675555.

It is an arithmetic number, because the mean of its divisors is an integer number (45339546672).

Almost surely, 2^305142345644 is an apocalyptic number.

It is an amenable number.

305142345644 is a deficient number, since it is larger than the sum of its proper divisors (238932214420).

305142345644 is a wasteful number, since it uses less digits than its factorization.

305142345644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439350744 (or 1439350742 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 305142345644 in words is "three hundred five billion, one hundred forty-two million, three hundred forty-five thousand, six hundred forty-four".