29438057808 has 120 divisors (see below), whose sum is σ = 87342235136. Its totient is φ = 9239443200.

The previous prime is 29438057807. The next prime is 29438057827. The reversal of 29438057808 is 80875083492.

It is a happy number.

29438057808 is a `hidden beast` number, since 29 + 43 + 8 + 0 + 578 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29438057807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76053 + ... + 254283.

Almost surely, 2^29438057808 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 29438057808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43671117568).

29438057808 is an abundant number, since it is smaller than the sum of its proper divisors (57904177328).

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

29438057808 is a wasteful number, since it uses less digits than its factorization.

29438057808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178313 (or 178304 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 29438057808 in words is "twenty-nine billion, four hundred thirty-eight million, fifty-seven thousand, eight hundred eight".