18400327 has 8 divisors (see below), whose sum is σ = 20134800. Its totient is φ = 16676160.

The previous prime is 18400313. The next prime is 18400351. The reversal of 18400327 is 72300481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18400327 - 2¹¹ = 18398279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18400387) 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, 1443 + ... + 6235.

It is an arithmetic number, because the mean of its divisors is an integer number (2516850).

Almost surely, 2^18400327 is an apocalyptic number.

18400327 is a deficient number, since it is larger than the sum of its proper divisors (1734473).

18400327 is a wasteful number, since it uses less digits than its factorization.

18400327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 18400327 is about 4289.5602338701. The cubic root of 18400327 is about 264.0027882702.

The spelling of 18400327 in words is "eighteen million, four hundred thousand, three hundred twenty-seven".