34450421 has 4 divisors (see below), whose sum is σ = 35015244. Its totient is φ = 33885600.

The previous prime is 34450417. The next prime is 34450433. The reversal of 34450421 is 12405443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12405443 = 89 ⋅139387.

It can be written as a sum of positive squares in 2 ways, for example, as 14326225 + 20124196 = 3785^2 + 4486^2 .

It is a cyclic number.

It is not a de Polignac number, because 34450421 - 2² = 34450417 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 (34450121) 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, 282320 + ... + 282441.

It is an arithmetic number, because the mean of its divisors is an integer number (8753811).

Almost surely, 2^34450421 is an apocalyptic number.

It is an amenable number.

34450421 is a deficient number, since it is larger than the sum of its proper divisors (564823).

34450421 is an equidigital number, since it uses as much as digits as its factorization.

34450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564822.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 34450421 is about 5869.4481001198. The cubic root of 34450421 is about 325.3854865730.

Adding to 34450421 its reverse (12405443), we get a palindrome (46855864).

The spelling of 34450421 in words is "thirty-four million, four hundred fifty thousand, four hundred twenty-one".