68822520 has 128 divisors (see below), whose sum is σ = 224562240. Its totient is φ = 16773120.

The previous prime is 68822519. The next prime is 68822531. The reversal of 68822520 is 2522886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244780 + ... + 245060.

Almost surely, 2^68822520 is an apocalyptic number.

68822520 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 68822520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112281120).

68822520 is an abundant number, since it is smaller than the sum of its proper divisors (155739720).

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

68822520 is a wasteful number, since it uses less digits than its factorization.

68822520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 68822520 is about 8295.9339438064. The cubic root of 68822520 is about 409.8046263281.

The spelling of 68822520 in words is "sixty-eight million, eight hundred twenty-two thousand, five hundred twenty".