434242656 has 72 divisors (see below), whose sum is σ = 1268283744. Its totient is φ = 140832000.

The previous prime is 434242639. The next prime is 434242657. The reversal of 434242656 is 656242434.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 434242656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434242657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9720 + ... + 31031.

It is an arithmetic number, because the mean of its divisors is an integer number (17615052).

Almost surely, 2^434242656 is an apocalyptic number.

It is an amenable number.

434242656 is an abundant number, since it is smaller than the sum of its proper divisors (834041088).

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

434242656 is a wasteful number, since it uses less digits than its factorization.

434242656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40804 (or 40793 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 434242656 is about 20838.4897725339. The cubic root of 434242656 is about 757.2585068184.

The spelling of 434242656 in words is "four hundred thirty-four million, two hundred forty-two thousand, six hundred fifty-six".