29454221 has 4 divisors (see below), whose sum is σ = 29686272. Its totient is φ = 29222172.

The previous prime is 29454203. The next prime is 29454253. The reversal of 29454221 is 12245492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29454221 is a prime.

It is a super-2 number, since 2×29454221² = 1735102269433682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29454721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115835 + ... + 116088.

It is an arithmetic number, because the mean of its divisors is an integer number (7421568).

Almost surely, 2^29454221 is an apocalyptic number.

It is an amenable number.

29454221 is a deficient number, since it is larger than the sum of its proper divisors (232051).

29454221 is a wasteful number, since it uses less digits than its factorization.

29454221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232050.

The product of its digits is 5760, while the sum is 29.

The square root of 29454221 is about 5427.1743108177. The cubic root of 29454221 is about 308.8274155559.

The spelling of 29454221 in words is "twenty-nine million, four hundred fifty-four thousand, two hundred twenty-one".