68959220 has 48 divisors (see below), whose sum is σ = 158554368. Its totient is φ = 24984960.

The previous prime is 68959217. The next prime is 68959223. The reversal of 68959220 is 2295986.

It is an interprime number because it is at equal distance from previous prime (68959217) and next prime (68959223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68959223) 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, 101522 + ... + 102198.

It is an arithmetic number, because the mean of its divisors is an integer number (3303216).

Almost surely, 2^68959220 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 68959220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79277184).

68959220 is an abundant number, since it is smaller than the sum of its proper divisors (89595148).

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

68959220 is a wasteful number, since it uses less digits than its factorization.

68959220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 68959220 is about 8304.1688325804. The cubic root of 68959220 is about 410.0757742162.

The spelling of 68959220 in words is "sixty-eight million, nine hundred fifty-nine thousand, two hundred twenty".