68889180 has 48 divisors (see below), whose sum is σ = 193334400. Its totient is φ = 18328128.

The previous prime is 68889173. The next prime is 68889187. The reversal of 68889180 is 8198886.

It is an interprime number because it is at equal distance from previous prime (68889173) and next prime (68889187).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68889187) 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, 31771 + ... + 33869.

It is an arithmetic number, because the mean of its divisors is an integer number (4027800).

Almost surely, 2^68889180 is an apocalyptic number.

68889180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68889180 is an abundant number, since it is smaller than the sum of its proper divisors (124445220).

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

68889180 is a wasteful number, since it uses less digits than its factorization.

68889180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 68889180 is about 8299.9506022626. The cubic root of 68889180 is about 409.9368929244.

The spelling of 68889180 in words is "sixty-eight million, eight hundred eighty-nine thousand, one hundred eighty".