29472720 has 80 divisors (see below), whose sum is σ = 93863040. Its totient is φ = 7644672.

The previous prime is 29472659. The next prime is 29472721. The reversal of 29472720 is 2727492.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29472721) 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 15 ways as a sum of consecutive naturals, for example, 7221 + ... + 10539.

It is an arithmetic number, because the mean of its divisors is an integer number (1173288).

Almost surely, 2^29472720 is an apocalyptic number.

29472720 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 29472720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46931520).

29472720 is an abundant number, since it is smaller than the sum of its proper divisors (64390320).

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

29472720 is a wasteful number, since it uses less digits than its factorization.

29472720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 29472720 is about 5428.8783371890. The cubic root of 29472720 is about 308.8920560109.

The spelling of 29472720 in words is "twenty-nine million, four hundred seventy-two thousand, seven hundred twenty".