18067340 has 12 divisors (see below), whose sum is σ = 37941456. Its totient is φ = 7226928.

The previous prime is 18067339. The next prime is 18067363. The reversal of 18067340 is 4376081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451664 + ... + 451703.

It is an arithmetic number, because the mean of its divisors is an integer number (3161788).

Almost surely, 2^18067340 is an apocalyptic number.

18067340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18067340 is an abundant number, since it is smaller than the sum of its proper divisors (19874116).

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

18067340 is a wasteful number, since it uses less digits than its factorization.

18067340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903376 (or 903374 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 18067340 is about 4250.5693736251. The cubic root of 18067340 is about 262.4005488723.

The spelling of 18067340 in words is "eighteen million, sixty-seven thousand, three hundred forty".