29799441840 has 640 divisors, whose sum is σ = 114426961920. Its totient is φ = 6270566400.

The previous prime is 29799441799. The next prime is 29799441929. The reversal of 29799441840 is 4814499792.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 109960905 + ... + 109961175.

It is an arithmetic number, because the mean of its divisors is an integer number (178792128).

Almost surely, 2^29799441840 is an apocalyptic number.

29799441840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29799441840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57213480960).

29799441840 is an abundant number, since it is smaller than the sum of its proper divisors (84627520080).

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

29799441840 is a wasteful number, since it uses less digits than its factorization.

29799441840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 29799441840 in words is "twenty-nine billion, seven hundred ninety-nine million, four hundred forty-one thousand, eight hundred forty".