29841940140 has 24 divisors (see below), whose sum is σ = 83557432560. Its totient is φ = 7957850688.

The previous prime is 29841940133. The next prime is 29841940153. The reversal of 29841940140 is 4104914892.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29841940092 and 29841940101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248682775 + ... + 248682894.

It is an arithmetic number, because the mean of its divisors is an integer number (3481559690).

Almost surely, 2^29841940140 is an apocalyptic number.

29841940140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29841940140 is an abundant number, since it is smaller than the sum of its proper divisors (53715492420).

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

29841940140 is a wasteful number, since it uses less digits than its factorization.

29841940140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497365681 (or 497365679 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 29841940140 in words is "twenty-nine billion, eight hundred forty-one million, nine hundred forty thousand, one hundred forty".