18875379 has 8 divisors (see below), whose sum is σ = 26491840. Its totient is φ = 11921256.

The previous prime is 18875377. The next prime is 18875393. The reversal of 18875379 is 97357881.

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

It is not a de Polignac number, because 18875379 - 2¹ = 18875377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18875377) 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, 165517 + ... + 165630.

It is an arithmetic number, because the mean of its divisors is an integer number (3311480).

Almost surely, 2^18875379 is an apocalyptic number.

18875379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18875379 is a deficient number, since it is larger than the sum of its proper divisors (7616461).

18875379 is a wasteful number, since it uses less digits than its factorization.

18875379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331169.

The product of its digits is 423360, while the sum is 48.

The square root of 18875379 is about 4344.5804170253. The cubic root of 18875379 is about 266.2554831466.

The spelling of 18875379 in words is "eighteen million, eight hundred seventy-five thousand, three hundred seventy-nine".