434421407 has 12 divisors (see below), whose sum is σ = 509333760. Its totient is φ = 369423936.

The previous prime is 434421397. The next prime is 434421469. The reversal of 434421407 is 704124434.

It is not a de Polignac number, because 434421407 - 2⁶ = 434421343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434421407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434421707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28682 + ... + 41127.

It is an arithmetic number, because the mean of its divisors is an integer number (42444480).

Almost surely, 2^434421407 is an apocalyptic number.

434421407 is a deficient number, since it is larger than the sum of its proper divisors (74912353).

434421407 is a wasteful number, since it uses less digits than its factorization.

434421407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69950 (or 69943 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 434421407 is about 20842.7782936920. The cubic root of 434421407 is about 757.3623981524.

The spelling of 434421407 in words is "four hundred thirty-four million, four hundred twenty-one thousand, four hundred seven".