30233920137444 has 81 divisors (see below), whose sum is σ = 77898317833609. Its totient is φ = 9887251090080.

The previous prime is 30233920137437. The next prime is 30233920137451. The reversal of 30233920137444 is 44473102933203.

The square root of 30233920137444 is 5498538.

It is a perfect power (a square), and thus also a powerful number.

30233920137444 is a `hidden beast` number, since 3 + 0 + 2 + 3 + 39 + 201 + 374 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (30233920137437) and next prime (30233920137451).

It can be written as a sum of positive squares in only one way, i.e., 21795545844900 + 8438374292544 = 4668570^2 + 2904888^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30233920137444.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1748526439 + ... + 1748543729.

Almost surely, 2^{30233920137444} is an apocalyptic number.

30233920137444 is the 5498538-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30233920137444

30233920137444 is an abundant number, since it is smaller than the sum of its proper divisors (47664397696165).

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

30233920137444 is an frugal number, since it uses more digits than its factorization.

30233920137444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34698 (or 17349 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 30233920137444 in words is "thirty trillion, two hundred thirty-three billion, nine hundred twenty million, one hundred thirty-seven thousand, four hundred forty-four".