29489994000 has 240 divisors, whose sum is σ = 106815246720. Its totient is φ = 7863868800.

The previous prime is 29489993987. The next prime is 29489994077. The reversal of 29489994000 is 49998492.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×29489994000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455661 + ... + 516339.

It is an arithmetic number, because the mean of its divisors is an integer number (445063528).

Almost surely, 2^29489994000 is an apocalyptic number.

29489994000 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 29489994000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53407623360).

29489994000 is an abundant number, since it is smaller than the sum of its proper divisors (77325252720).

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

29489994000 is an equidigital number, since it uses as much as digits as its factorization.

29489994000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60717 (or 60689 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 29489994000 in words is "twenty-nine billion, four hundred eighty-nine million, nine hundred ninety-four thousand".