68411040 has 96 divisors (see below), whose sum is σ = 216639360. Its totient is φ = 18146304.

The previous prime is 68411027. The next prime is 68411041. The reversal of 68411040 is 4011486.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 68411040.

It is not an unprimeable number, because it can be changed into a prime (68411041) 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, 172122 + ... + 172518.

It is an arithmetic number, because the mean of its divisors is an integer number (2256660).

Almost surely, 2^68411040 is an apocalyptic number.

68411040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68411040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108319680).

68411040 is an abundant number, since it is smaller than the sum of its proper divisors (148228320).

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

68411040 is a wasteful number, since it uses less digits than its factorization.

68411040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 68411040 is about 8271.0966624747. The cubic root of 68411040 is about 408.9862721384.

The spelling of 68411040 in words is "sixty-eight million, four hundred eleven thousand, forty".