434438646 has 8 divisors (see below), whose sum is σ = 868877304. Its totient is φ = 144812880.

The previous prime is 434438611. The next prime is 434438657. The reversal of 434438646 is 646834434.

It is a sphenic number, since it is the product of 3 distinct primes.

434438646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 434438598 and 434438607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36203215 + ... + 36203226.

It is an arithmetic number, because the mean of its divisors is an integer number (108609663).

Almost surely, 2^434438646 is an apocalyptic number.

434438646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

434438646 is a wasteful number, since it uses less digits than its factorization.

434438646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72406446.

The product of its digits is 663552, while the sum is 42.

The square root of 434438646 is about 20843.1918381039. The cubic root of 434438646 is about 757.3724160731.

The spelling of 434438646 in words is "four hundred thirty-four million, four hundred thirty-eight thousand, six hundred forty-six".