68558340 has 48 divisors (see below), whose sum is σ = 196435008. Its totient is φ = 17856384.

The previous prime is 68558323. The next prime is 68558341. The reversal of 68558340 is 4385586.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68558341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10707 + ... + 15866.

It is an arithmetic number, because the mean of its divisors is an integer number (4092396).

Almost surely, 2^68558340 is an apocalyptic number.

68558340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68558340 is an abundant number, since it is smaller than the sum of its proper divisors (127876668).

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

68558340 is a wasteful number, since it uses less digits than its factorization.

68558340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26628 (or 26626 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 68558340 is about 8279.9963768108. The cubic root of 68558340 is about 409.2795995089.

The spelling of 68558340 in words is "sixty-eight million, five hundred fifty-eight thousand, three hundred forty".