34429421 has 8 divisors (see below), whose sum is σ = 37125144. Its totient is φ = 31740480.

The previous prime is 34429393. The next prime is 34429429. The reversal of 34429421 is 12492443.

It can be written as a sum of positive squares in 4 ways, for example, as 11485321 + 22944100 = 3389^2 + 4790^2 .

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 34429421 - 2¹⁸ = 34167277 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 (34429429) 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, 15011 + ... + 17151.

It is an arithmetic number, because the mean of its divisors is an integer number (4640643).

Almost surely, 2^34429421 is an apocalyptic number.

It is an amenable number.

34429421 is a deficient number, since it is larger than the sum of its proper divisors (2695723).

34429421 is a wasteful number, since it uses less digits than its factorization.

34429421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391.

The product of its digits is 6912, while the sum is 29.

The square root of 34429421 is about 5867.6589028334. The cubic root of 34429421 is about 325.3193578784.

The spelling of 34429421 in words is "thirty-four million, four hundred twenty-nine thousand, four hundred twenty-one".