68985224 has 64 divisors (see below), whose sum is σ = 164384640. Its totient is φ = 26357760.

The previous prime is 68985221. The next prime is 68985227. The reversal of 68985224 is 42258986.

It is an interprime number because it is at equal distance from previous prime (68985221) and next prime (68985227).

It is a super-2 number, since 2×68985224² = 9517922260660352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (68985221) 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, 31592 + ... + 33704.

It is an arithmetic number, because the mean of its divisors is an integer number (2568510).

Almost surely, 2^68985224 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 68985224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82192320).

68985224 is an abundant number, since it is smaller than the sum of its proper divisors (95399416).

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

68985224 is a wasteful number, since it uses less digits than its factorization.

68985224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2186 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 68985224 is about 8305.7344046147. The cubic root of 68985224 is about 410.1273132288.

The spelling of 68985224 in words is "sixty-eight million, nine hundred eighty-five thousand, two hundred twenty-four".