681032352 has 384 divisors, whose sum is σ = 2533386240. Its totient is φ = 154275840.

The previous prime is 681032321. The next prime is 681032353. The reversal of 681032352 is 253230186.

It is not an unprimeable number, because it can be changed into a prime (681032353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1825638 + ... + 1826010.

It is an arithmetic number, because the mean of its divisors is an integer number (6597360).

Almost surely, 2^681032352 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 681032352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266693120).

681032352 is an abundant number, since it is smaller than the sum of its proper divisors (1852353888).

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

681032352 is a wasteful number, since it uses less digits than its factorization.

681032352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 681032352 is about 26096.5965597049. The cubic root of 681032352 is about 879.8107168649.

The spelling of 681032352 in words is "six hundred eighty-one million, thirty-two thousand, three hundred fifty-two".