423880656 has 40 divisors (see below), whose sum is σ = 1107339840. Its totient is φ = 139704576.

The previous prime is 423880619. The next prime is 423880657. The reversal of 423880656 is 656088324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423880657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45340 + ... + 53883.

It is an arithmetic number, because the mean of its divisors is an integer number (27683496).

Almost surely, 2^423880656 is an apocalyptic number.

It is an amenable number.

423880656 is an abundant number, since it is smaller than the sum of its proper divisors (683459184).

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

423880656 is a wasteful number, since it uses less digits than its factorization.

423880656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99323 (or 99317 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 423880656 is about 20588.3621495252. The cubic root of 423880656 is about 751.1866583546.

The spelling of 423880656 in words is "four hundred twenty-three million, eight hundred eighty thousand, six hundred fifty-six".