29280328 has 32 divisors (see below), whose sum is σ = 68448960. Its totient is φ = 11407680.

The previous prime is 29280319. The next prime is 29280331. The reversal of 29280328 is 82308292.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29280293 and 29280302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23151 + ... + 24382.

It is an arithmetic number, because the mean of its divisors is an integer number (2139030).

Almost surely, 2^29280328 is an apocalyptic number.

29280328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29280328 is an abundant number, since it is smaller than the sum of its proper divisors (39168632).

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

29280328 is a wasteful number, since it uses less digits than its factorization.

29280328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47557 (or 47553 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 29280328 is about 5411.1300113747. The cubic root of 29280328 is about 308.2184597318.

The spelling of 29280328 in words is "twenty-nine million, two hundred eighty thousand, three hundred twenty-eight".