29121952 has 72 divisors (see below), whose sum is σ = 63129024. Its totient is φ = 13212672.

The previous prime is 29121947. The next prime is 29121959. The reversal of 29121952 is 25912192.

It is not an unprimeable number, because it can be changed into a prime (29121959) 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 11 ways as a sum of consecutive naturals, for example, 434623 + ... + 434689.

It is an arithmetic number, because the mean of its divisors is an integer number (876792).

Almost surely, 2^29121952 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 29121952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31564512).

29121952 is an abundant number, since it is smaller than the sum of its proper divisors (34007072).

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

29121952 is a wasteful number, since it uses less digits than its factorization.

29121952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 133 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 29121952 is about 5396.4758870952. The cubic root of 29121952 is about 307.6617414252.

The spelling of 29121952 in words is "twenty-nine million, one hundred twenty-one thousand, nine hundred fifty-two".