29421423 has 6 divisors (see below), whose sum is σ = 42497624. Its totient is φ = 19614276.

The previous prime is 29421419. The next prime is 29421437. The reversal of 29421423 is 32412492.

It is not a de Polignac number, because 29421423 - 2² = 29421419 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 (29421473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1634515 + ... + 1634532.

Almost surely, 2^29421423 is an apocalyptic number.

29421423 is a deficient number, since it is larger than the sum of its proper divisors (13076201).

29421423 is a wasteful number, since it uses less digits than its factorization.

29421423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269053 (or 3269050 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 29421423 is about 5424.1518230964. The cubic root of 29421423 is about 308.7127440062.

The spelling of 29421423 in words is "twenty-nine million, four hundred twenty-one thousand, four hundred twenty-three".