434240646 has 48 divisors (see below), whose sum is σ = 1024164144. Its totient is φ = 122363136.

The previous prime is 434240627. The next prime is 434240659. The reversal of 434240646 is 646042434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11346 + ... + 31578.

It is an arithmetic number, because the mean of its divisors is an integer number (21336753).

Almost surely, 2^434240646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434240646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512082072).

434240646 is an abundant number, since it is smaller than the sum of its proper divisors (589923498).

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

434240646 is a wasteful number, since it uses less digits than its factorization.

434240646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20325 (or 20318 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

The square root of 434240646 is about 20838.4415444150. The cubic root of 434240646 is about 757.2573384303.

The spelling of 434240646 in words is "four hundred thirty-four million, two hundred forty thousand, six hundred forty-six".