68036220 has 192 divisors, whose sum is σ = 248371200. Its totient is φ = 15137280.

The previous prime is 68036209. The next prime is 68036239. The reversal of 68036220 is 2263086.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154761 + ... + 155199.

It is an arithmetic number, because the mean of its divisors is an integer number (1293600).

Almost surely, 2^68036220 is an apocalyptic number.

68036220 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 68036220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124185600).

68036220 is an abundant number, since it is smaller than the sum of its proper divisors (180334980).

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

68036220 is a wasteful number, since it uses less digits than its factorization.

68036220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 68036220 is about 8248.4071189533. The cubic root of 68036220 is about 408.2379667148.

The spelling of 68036220 in words is "sixty-eight million, thirty-six thousand, two hundred twenty".