680538474 has 192 divisors, whose sum is σ = 1943764992. Its totient is φ = 166924800.

The previous prime is 680538437. The next prime is 680538487. The reversal of 680538474 is 474835086.

It is a super-2 number, since 2×680538474² = 926265229188497352, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2019234 + ... + 2019570.

It is an arithmetic number, because the mean of its divisors is an integer number (10123776).

Almost surely, 2^680538474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680538474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971882496).

680538474 is an abundant number, since it is smaller than the sum of its proper divisors (1263226518).

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

680538474 is a wasteful number, since it uses less digits than its factorization.

680538474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 680538474 is about 26087.1323452770. The cubic root of 680538474 is about 879.5979887252.

The spelling of 680538474 in words is "six hundred eighty million, five hundred thirty-eight thousand, four hundred seventy-four".