29121792 has 72 divisors (see below), whose sum is σ = 88595136. Its totient is φ = 8318976.

The previous prime is 29121787. The next prime is 29121809. The reversal of 29121792 is 29712192.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (1230488).

Almost surely, 2^29121792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29121792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44297568).

29121792 is an abundant number, since it is smaller than the sum of its proper divisors (59473344).

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

29121792 is an equidigital number, since it uses as much as digits as its factorization.

29121792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5443 (or 5429 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 29121792 is about 5396.4610625854. The cubic root of 29121792 is about 307.6611779789.

The spelling of 29121792 in words is "twenty-nine million, one hundred twenty-one thousand, seven hundred ninety-two".