68887340 has 48 divisors (see below), whose sum is σ = 149947392. Its totient is φ = 26562816.

The previous prime is 68887337. The next prime is 68887367. The reversal of 68887340 is 4378886.

It is a happy number.

It is a super-2 number, since 2×68887340² = 9490931224551200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68887291 and 68887300.

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 15 ways as a sum of consecutive naturals, for example, 93614 + ... + 94346.

It is an arithmetic number, because the mean of its divisors is an integer number (3123904).

Almost surely, 2^68887340 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 68887340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74973696).

68887340 is an abundant number, since it is smaller than the sum of its proper divisors (81060052).

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

68887340 is a wasteful number, since it uses less digits than its factorization.

68887340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 68887340 is about 8299.8397574893. The cubic root of 68887340 is about 409.9332431466.

The spelling of 68887340 in words is "sixty-eight million, eight hundred eighty-seven thousand, three hundred forty".