29898880 has 128 divisors (see below), whose sum is σ = 81077760. Its totient is φ = 10444800.

The previous prime is 29898877. The next prime is 29898941. The reversal of 29898880 is 8889892.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218172 + ... + 218308.

It is an arithmetic number, because the mean of its divisors is an integer number (633420).

Almost surely, 2^29898880 is an apocalyptic number.

29898880 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 29898880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40538880).

29898880 is an abundant number, since it is smaller than the sum of its proper divisors (51178880).

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

29898880 is a wasteful number, since it uses less digits than its factorization.

29898880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 29898880 is about 5467.9868324640. The cubic root of 29898880 is about 310.3737427748.

The spelling of 29898880 in words is "twenty-nine million, eight hundred ninety-eight thousand, eight hundred eighty".