29201421 has 8 divisors (see below), whose sum is σ = 40628160. Its totient is φ = 18621152.

The previous prime is 29201363. The next prime is 29201443. The reversal of 29201421 is 12410292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29201421 - 2⁹ = 29200909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29201321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 211536 + ... + 211673.

It is an arithmetic number, because the mean of its divisors is an integer number (5078520).

Almost surely, 2^29201421 is an apocalyptic number.

It is an amenable number.

29201421 is a deficient number, since it is larger than the sum of its proper divisors (11426739).

29201421 is a wasteful number, since it uses less digits than its factorization.

29201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423235.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 29201421 is about 5403.8339167669. The cubic root of 29201421 is about 307.9413399559.

The spelling of 29201421 in words is "twenty-nine million, two hundred one thousand, four hundred twenty-one".