68602840 has 64 divisors (see below), whose sum is σ = 161028000. Its totient is φ = 26280960.

The previous prime is 68602757. The next prime is 68602867. The reversal of 68602840 is 4820686.

It is a junction number, because it is equal to n+sod(n) for n = 68602796 and 68602805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96406 + ... + 97114.

Almost surely, 2^68602840 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 68602840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80514000).

68602840 is an abundant number, since it is smaller than the sum of its proper divisors (92425160).

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

68602840 is a wasteful number, since it uses less digits than its factorization.

68602840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 68602840 is about 8282.6831401425. The cubic root of 68602840 is about 409.3681323946.

The spelling of 68602840 in words is "sixty-eight million, six hundred two thousand, eight hundred forty".