68411772 has 144 divisors (see below), whose sum is σ = 206754912. Its totient is φ = 18800640.

The previous prime is 68411771. The next prime is 68411773. The reversal of 68411772 is 27711486.

It is an interprime number because it is at equal distance from previous prime (68411771) and next prime (68411773).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68411771) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 499288 + ... + 499424.

It is an arithmetic number, because the mean of its divisors is an integer number (1435798).

Almost surely, 2^68411772 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 68411772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103377456).

68411772 is an abundant number, since it is smaller than the sum of its proper divisors (138343140).

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

68411772 is a wasteful number, since it uses less digits than its factorization.

68411772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 263 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 68411772 is about 8271.1409128366. The cubic root of 68411772 is about 408.9877308547.

The spelling of 68411772 in words is "sixty-eight million, four hundred eleven thousand, seven hundred seventy-two".