29172052 has 54 divisors (see below), whose sum is σ = 64557402. Its totient is φ = 11432736.

The previous prime is 29172047. The next prime is 29172097. The reversal of 29172052 is 25027192.

It can be written as a sum of positive squares in only one way, i.e., 20196036 + 8976016 = 4494^2 + 2996^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 29172052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 272583 + ... + 272689.

Almost surely, 2^29172052 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 29172052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32278701).

29172052 is an abundant number, since it is smaller than the sum of its proper divisors (35385350).

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

29172052 is a wasteful number, since it uses less digits than its factorization.

29172052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 29172052 is about 5401.1158106451. The cubic root of 29172052 is about 307.8380691498.

The spelling of 29172052 in words is "twenty-nine million, one hundred seventy-two thousand, fifty-two".