68364880 has 40 divisors (see below), whose sum is σ = 160541064. Its totient is φ = 27072000.

The previous prime is 68364853. The next prime is 68364949. The reversal of 68364880 is 8846386.

68364880 = T₂₄₇ + T₂₄₈ + ... + T₇₅₁.

It can be written as a sum of positive squares in 4 ways, for example, as 35141184 + 33223696 = 5928^2 + 5764^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3850 + ... + 12310.

Almost surely, 2^68364880 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 68364880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80270532).

68364880 is an abundant number, since it is smaller than the sum of its proper divisors (92176184).

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

68364880 is a wasteful number, since it uses less digits than its factorization.

68364880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575 (or 8569 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 68364880 is about 8268.3057514826. The cubic root of 68364880 is about 408.8942643083.

The spelling of 68364880 in words is "sixty-eight million, three hundred sixty-four thousand, eight hundred eighty".