30451142444 has 6 divisors (see below), whose sum is σ = 53289499284. Its totient is φ = 15225571220.

The previous prime is 30451142443. The next prime is 30451142453. The reversal of 30451142444 is 44424115403.

It is a super-2 number, since 2×30451142444² (a number of 22 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 30451142444.

It is not an unprimeable number, because it can be changed into a prime (30451142443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806392802 + ... + 3806392809.

It is an arithmetic number, because the mean of its divisors is an integer number (8881583214).

Almost surely, 2^30451142444 is an apocalyptic number.

It is an amenable number.

30451142444 is a deficient number, since it is larger than the sum of its proper divisors (22838356840).

30451142444 is a wasteful number, since it uses less digits than its factorization.

30451142444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612785615 (or 7612785613 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 30451142444 its reverse (44424115403), we get a palindrome (74875257847).

The spelling of 30451142444 in words is "thirty billion, four hundred fifty-one million, one hundred forty-two thousand, four hundred forty-four".