29840142 has 8 divisors (see below), whose sum is σ = 59680296. Its totient is φ = 9946712.

The previous prime is 29840123. The next prime is 29840143. The reversal of 29840142 is 24104892.

It is a sphenic number, since it is the product of 3 distinct primes.

29840142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29840143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486673 + ... + 2486684.

It is an arithmetic number, because the mean of its divisors is an integer number (7460037).

Almost surely, 2^29840142 is an apocalyptic number.

29840142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

29840142 is a wasteful number, since it uses less digits than its factorization.

29840142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973362.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 29840142 is about 5462.6131109571. The cubic root of 29840142 is about 310.1703607488.

The spelling of 29840142 in words is "twenty-nine million, eight hundred forty thousand, one hundred forty-two".