68914240 has 56 divisors (see below), whose sum is σ = 169420032. Its totient is φ = 26672640.

The previous prime is 68914231. The next prime is 68914247. The reversal of 68914240 is 4241986.

It is a junction number, because it is equal to n+sod(n) for n = 68914196 and 68914205.

It is not an unprimeable number, because it can be changed into a prime (68914247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6447 + ... + 13393.

Almost surely, 2^68914240 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 68914240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84710016).

68914240 is an abundant number, since it is smaller than the sum of its proper divisors (100505792).

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

68914240 is a wasteful number, since it uses less digits than its factorization.

68914240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995 (or 6985 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 68914240 is about 8301.4601125344. The cubic root of 68914240 is about 409.9865948423.

The spelling of 68914240 in words is "sixty-eight million, nine hundred fourteen thousand, two hundred forty".