30220453044 has 72 divisors (see below), whose sum is σ = 79081766400. Its totient is φ = 9720475200.

The previous prime is 30220453033. The next prime is 30220453051. The reversal of 30220453044 is 44035402203.

It is a junction number, because it is equal to n+sod(n) for n = 30220452999 and 30220453017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350689 + ... + 428279.

Almost surely, 2^30220453044 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 30220453044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39540883200).

30220453044 is an abundant number, since it is smaller than the sum of its proper divisors (48861313356).

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

30220453044 is a wasteful number, since it uses less digits than its factorization.

30220453044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77981 (or 77976 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 30220453044 its reverse (44035402203), we get a palindrome (74255855247).

The spelling of 30220453044 in words is "thirty billion, two hundred twenty million, four hundred fifty-three thousand, forty-four".