29141840 has 80 divisors (see below), whose sum is σ = 83411328. Its totient is φ = 9220608.

The previous prime is 29141821. The next prime is 29141887. The reversal of 29141840 is 4814192.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5279 + ... + 9281.

Almost surely, 2^29141840 is an apocalyptic number.

29141840 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 29141840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41705664).

29141840 is an abundant number, since it is smaller than the sum of its proper divisors (54269488).

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

29141840 is a wasteful number, since it uses less digits than its factorization.

29141840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036 (or 4030 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 29141840 is about 5398.3182566425. The cubic root of 29141840 is about 307.7317617356.

The spelling of 29141840 in words is "twenty-nine million, one hundred forty-one thousand, eight hundred forty".