29082720 has 48 divisors (see below), whose sum is σ = 91612080. Its totient is φ = 7755264.

The previous prime is 29082709. The next prime is 29082727. The reversal of 29082720 is 2728092.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29082727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29815 + ... + 30774.

It is an arithmetic number, because the mean of its divisors is an integer number (1908585).

Almost surely, 2^29082720 is an apocalyptic number.

29082720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29082720 is an abundant number, since it is smaller than the sum of its proper divisors (62529360).

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

29082720 is a wasteful number, since it uses less digits than its factorization.

29082720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60607 (or 60599 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 29082720 is about 5392.8396972282. The cubic root of 29082720 is about 307.5235225578.

The spelling of 29082720 in words is "twenty-nine million, eighty-two thousand, seven hundred twenty".