68222088 has 160 divisors (see below), whose sum is σ = 221110560. Its totient is φ = 19422720.

The previous prime is 68222081. The next prime is 68222101. The reversal of 68222088 is 88022286.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68222081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 120895 + ... + 121457.

It is an arithmetic number, because the mean of its divisors is an integer number (1381941).

Almost surely, 2^68222088 is an apocalyptic number.

68222088 is a gapful number since it is divisible by the number (68) 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 68222088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110555280).

68222088 is an abundant number, since it is smaller than the sum of its proper divisors (152888472).

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

68222088 is a wasteful number, since it uses less digits than its factorization.

68222088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 68222088 is about 8259.6663370865. Note that the first 3 decimals coincide. The cubic root of 68222088 is about 408.6093834972.

The spelling of 68222088 in words is "sixty-eight million, two hundred twenty-two thousand, eighty-eight".