29893323944 has 48 divisors (see below), whose sum is σ = 61669376160. Its totient is φ = 13574484000.

The previous prime is 29893323853. The next prime is 29893323947. The reversal of 29893323944 is 44932339892.

It is a super-2 number, since 2×29893323944² (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 29893323944.

It is not an unprimeable number, because it can be changed into a prime (29893323947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1002677 + ... + 1032059.

It is an arithmetic number, because the mean of its divisors is an integer number (1284778670).

Almost surely, 2^29893323944 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 29893323944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30834688080).

29893323944 is an abundant number, since it is smaller than the sum of its proper divisors (31776052216).

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

29893323944 is a wasteful number, since it uses less digits than its factorization.

29893323944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30462 (or 30447 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 56.

The spelling of 29893323944 in words is "twenty-nine billion, eight hundred ninety-three million, three hundred twenty-three thousand, nine hundred forty-four".