676232420 has 72 divisors (see below), whose sum is σ = 1508988600. Its totient is φ = 254513664.

The previous prime is 676232399. The next prime is 676232437. The reversal of 676232420 is 24232676.

676232420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 365344996 + 310887424 = 19114^2 + 17632^2 .

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, 1653176 + ... + 1653584.

It is an arithmetic number, because the mean of its divisors is an integer number (20958175).

Almost surely, 2^676232420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754494300).

676232420 is an abundant number, since it is smaller than the sum of its proper divisors (832756180).

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

676232420 is a wasteful number, since it uses less digits than its factorization.

676232420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 676232420 is about 26004.4692312687. The cubic root of 676232420 is about 877.7388662034.

The spelling of 676232420 in words is "six hundred seventy-six million, two hundred thirty-two thousand, four hundred twenty".