68045184 has 80 divisors (see below), whose sum is σ = 202532220. Its totient is φ = 22678272.

The previous prime is 68045177. The next prime is 68045191. The reversal of 68045184 is 48154086.

It is an interprime number because it is at equal distance from previous prime (68045177) and next prime (68045191).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7087 + ... + 13649.

Almost surely, 2^68045184 is an apocalyptic number.

68045184 is a gapful number since it is divisible by the number (64) 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 68045184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101266110).

68045184 is an abundant number, since it is smaller than the sum of its proper divisors (134487036).

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

68045184 is an equidigital number, since it uses as much as digits as its factorization.

68045184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 68045184 is about 8248.9504786973. The cubic root of 68045184 is about 408.2558948343.

The spelling of 68045184 in words is "sixty-eight million, forty-five thousand, one hundred eighty-four".