68865480 has 96 divisors (see below), whose sum is σ = 225047160. Its totient is φ = 18263040.

The previous prime is 68865479. The next prime is 68865529. The reversal of 68865480 is 8456886.

It can be written as a sum of positive squares in 4 ways, for example, as 37527876 + 31337604 = 6126^2 + 5598^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83470 + ... + 84290.

Almost surely, 2^68865480 is an apocalyptic number.

68865480 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 68865480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112523580).

68865480 is an abundant number, since it is smaller than the sum of its proper divisors (156181680).

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

68865480 is a wasteful number, since it uses less digits than its factorization.

68865480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 68865480 is about 8298.5227601062. The cubic root of 68865480 is about 409.8898772260.

The spelling of 68865480 in words is "sixty-eight million, eight hundred sixty-five thousand, four hundred eighty".