29230720 has 32 divisors (see below), whose sum is σ = 69881220. Its totient is φ = 11692032.

The previous prime is 29230717. The next prime is 29230741. The reversal of 29230720 is 2703292.

It can be written as a sum of positive squares in 2 ways, for example, as 28132416 + 1098304 = 5304^2 + 1048^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22197 + ... + 23476.

Almost surely, 2^29230720 is an apocalyptic number.

29230720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29230720 is an abundant number, since it is smaller than the sum of its proper divisors (40650500).

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

29230720 is an equidigital number, since it uses as much as digits as its factorization.

29230720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45692 (or 45680 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 29230720 is about 5406.5441827474. The cubic root of 29230720 is about 308.0442956476.

The spelling of 29230720 in words is "twenty-nine million, two hundred thirty thousand, seven hundred twenty".