29270880 has 72 divisors (see below), whose sum is σ = 99891792. Its totient is φ = 7805184.

The previous prime is 29270873. The next prime is 29270909. The reversal of 29270880 is 8807292.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8724 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (1387386).

Almost surely, 2^29270880 is an apocalyptic number.

29270880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29270880 is an abundant number, since it is smaller than the sum of its proper divisors (70620912).

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

29270880 is a wasteful number, since it uses less digits than its factorization.

29270880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20348 (or 20337 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 29270880 is about 5410.2569255073. The cubic root of 29270880 is about 308.1853048063.

The spelling of 29270880 in words is "twenty-nine million, two hundred seventy thousand, eight hundred eighty".