29422921 has 8 divisors (see below), whose sum is σ = 32198688. Its totient is φ = 26664000.

The previous prime is 29422889. The next prime is 29422949. The reversal of 29422921 is 12922492.

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

It is not a de Polignac number, because 29422921 - 2⁵ = 29422889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29422021) 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, 400 + ... + 7681.

It is an arithmetic number, because the mean of its divisors is an integer number (4024836).

Almost surely, 2^29422921 is an apocalyptic number.

It is an amenable number.

29422921 is a deficient number, since it is larger than the sum of its proper divisors (2775767).

29422921 is a wasteful number, since it uses less digits than its factorization.

29422921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423.

The product of its digits is 5184, while the sum is 31.

The square root of 29422921 is about 5424.2899074441. The cubic root of 29422921 is about 308.7179833159.

The spelling of 29422921 in words is "twenty-nine million, four hundred twenty-two thousand, nine hundred twenty-one".