29421880 has 32 divisors (see below), whose sum is σ = 69685200. Its totient is φ = 11149056.

The previous prime is 29421871. The next prime is 29421881. The reversal of 29421880 is 8812492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29421881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18597 + ... + 20116.

Almost surely, 2^29421880 is an apocalyptic number.

29421880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29421880 is an abundant number, since it is smaller than the sum of its proper divisors (40263320).

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

29421880 is a wasteful number, since it uses less digits than its factorization.

29421880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38743 (or 38739 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 29421880 is about 5424.1939493348. The cubic root of 29421880 is about 308.7143423992.

The spelling of 29421880 in words is "twenty-nine million, four hundred twenty-one thousand, eight hundred eighty".