67918980 has 48 divisors (see below), whose sum is σ = 190794240. Its totient is φ = 18052608.

The previous prime is 67918969. The next prime is 67918987. The reversal of 67918980 is 8981976.

It is a happy number.

It is a super-2 number, since 2×67918980² = 9225975688480800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67918987) 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, 18541 + ... + 21899.

It is an arithmetic number, because the mean of its divisors is an integer number (3974880).

Almost surely, 2^67918980 is an apocalyptic number.

67918980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67918980 is an abundant number, since it is smaller than the sum of its proper divisors (122875260).

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

67918980 is a wasteful number, since it uses less digits than its factorization.

67918980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708 (or 3706 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 67918980 is about 8241.2972279854. The cubic root of 67918980 is about 408.0033400342.

The spelling of 67918980 in words is "sixty-seven million, nine hundred eighteen thousand, nine hundred eighty".