67045818 has 48 divisors (see below), whose sum is σ = 157659264. Its totient is φ = 18950400.

The previous prime is 67045793. The next prime is 67045843. The reversal of 67045818 is 81854076.

It is an interprime number because it is at equal distance from previous prime (67045793) and next prime (67045843).

It is a super-2 number, since 2×67045818² = 8990283422578248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27343 + ... + 29693.

It is an arithmetic number, because the mean of its divisors is an integer number (3284568).

Almost surely, 2^67045818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67045818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78829632).

67045818 is an abundant number, since it is smaller than the sum of its proper divisors (90613446).

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

67045818 is a wasteful number, since it uses less digits than its factorization.

67045818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 67045818 is about 8188.1510733498. The cubic root of 67045818 is about 406.2473720382.

The spelling of 67045818 in words is "sixty-seven million, forty-five thousand, eight hundred eighteen".