18073379 has 4 divisors (see below), whose sum is σ = 18164400. Its totient is φ = 17982360.

The previous prime is 18073361. The next prime is 18073417. The reversal of 18073379 is 97337081.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18073379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18073309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45212 + ... + 45609.

It is an arithmetic number, because the mean of its divisors is an integer number (4541100).

Almost surely, 2^18073379 is an apocalyptic number.

18073379 is a deficient number, since it is larger than the sum of its proper divisors (91021).

18073379 is an equidigital number, since it uses as much as digits as its factorization.

18073379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91020.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 18073379 is about 4251.2796896934. The cubic root of 18073379 is about 262.4297813694.

The spelling of 18073379 in words is "eighteen million, seventy-three thousand, three hundred seventy-nine".