68259972 has 72 divisors (see below), whose sum is σ = 178573248. Its totient is φ = 20271680.

The previous prime is 68259953. The next prime is 68259973. The reversal of 68259972 is 27995286.

It is not an unprimeable number, because it can be changed into a prime (68259973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76513 + ... + 77399.

It is an arithmetic number, because the mean of its divisors is an integer number (2480184).

Almost surely, 2^68259972 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 68259972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89286624).

68259972 is an abundant number, since it is smaller than the sum of its proper divisors (110313276).

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

68259972 is a wasteful number, since it uses less digits than its factorization.

68259972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 956 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 68259972 is about 8261.9593317808. The cubic root of 68259972 is about 408.6850036466.

It can be divided in two parts, 682 and 59972, that multiplied together give a palindrome (40900904).

The spelling of 68259972 in words is "sixty-eight million, two hundred fifty-nine thousand, nine hundred seventy-two".