683157408 has 192 divisors, whose sum is σ = 1985679360. Its totient is φ = 204925952.

The previous prime is 683157373. The next prime is 683157413. The reversal of 683157408 is 804751386.

It is a self number, because there is not a number n which added to its sum of digits gives 683157408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3009391 + ... + 3009617.

It is an arithmetic number, because the mean of its divisors is an integer number (10342080).

Almost surely, 2^683157408 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 683157408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992839680).

683157408 is an abundant number, since it is smaller than the sum of its proper divisors (1302521952).

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

683157408 is a wasteful number, since it uses less digits than its factorization.

683157408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 683157408 is about 26137.2800421161. The cubic root of 683157408 is about 880.7248710669.

The spelling of 683157408 in words is "six hundred eighty-three million, one hundred fifty-seven thousand, four hundred eight".