29125880 has 32 divisors (see below), whose sum is σ = 74895840. Its totient is φ = 9985920.

The previous prime is 29125871. The next prime is 29125883. The reversal of 29125880 is 8852192.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 29125880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29125883) 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, 51731 + ... + 52290.

It is an arithmetic number, because the mean of its divisors is an integer number (2340495).

Almost surely, 2^29125880 is an apocalyptic number.

29125880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29125880 is an abundant number, since it is smaller than the sum of its proper divisors (45769960).

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

29125880 is a wasteful number, since it uses less digits than its factorization.

29125880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104039 (or 104035 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 29125880 is about 5396.8398160405. The cubic root of 29125880 is about 307.6755733848.

The spelling of 29125880 in words is "twenty-nine million, one hundred twenty-five thousand, eight hundred eighty".