29021472 has 36 divisors (see below), whose sum is σ = 82530630. Its totient is φ = 9673728.

The previous prime is 29021471. The next prime is 29021477. The reversal of 29021472 is 27412092.

It can be written as a sum of positive squares in only one way, i.e., 22240656 + 6780816 = 4716^2 + 2604^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (29021471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50097 + ... + 50672.

Almost surely, 2^29021472 is an apocalyptic number.

It is an amenable number.

29021472 is an abundant number, since it is smaller than the sum of its proper divisors (53509158).

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

29021472 is a wasteful number, since it uses less digits than its factorization.

29021472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100785 (or 100774 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 29021472 is about 5387.1580633948. The cubic root of 29021472 is about 307.3074900538.

The spelling of 29021472 in words is "twenty-nine million, twenty-one thousand, four hundred seventy-two".