67918560 has 48 divisors (see below), whose sum is σ = 213944976. Its totient is φ = 18111488.

The previous prime is 67918549. The next prime is 67918567. The reversal of 67918560 is 6581976.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×67918560² = 9225861584947200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67918567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70269 + ... + 71228.

It is an arithmetic number, because the mean of its divisors is an integer number (4457187).

Almost surely, 2^67918560 is an apocalyptic number.

67918560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67918560 is an abundant number, since it is smaller than the sum of its proper divisors (146026416).

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

67918560 is a wasteful number, since it uses less digits than its factorization.

67918560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141515 (or 141507 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 67918560 is about 8241.2717465207. The cubic root of 67918560 is about 408.0024990235.

It can be divided in two parts, 6791 and 8560, that added together give a palindrome (15351).

The spelling of 67918560 in words is "sixty-seven million, nine hundred eighteen thousand, five hundred sixty".