29448421 has 16 divisors (see below), whose sum is σ = 31208320. Its totient is φ = 27760320.

The previous prime is 29448413. The next prime is 29448431. The reversal of 29448421 is 12484492.

It is a cyclic number.

It is not a de Polignac number, because 29448421 - 2³ = 29448413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29448431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270115 + ... + 270223.

It is an arithmetic number, because the mean of its divisors is an integer number (1950520).

Almost surely, 2^29448421 is an apocalyptic number.

It is an amenable number.

29448421 is a deficient number, since it is larger than the sum of its proper divisors (1759899).

29448421 is a wasteful number, since it uses less digits than its factorization.

29448421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its digits is 18432, while the sum is 34.

The square root of 29448421 is about 5426.6399364616. The cubic root of 29448421 is about 308.8071432312.

The spelling of 29448421 in words is "twenty-nine million, four hundred forty-eight thousand, four hundred twenty-one".