18048445 has 8 divisors (see below), whose sum is σ = 22599936. Its totient is φ = 13810896.

The previous prime is 18048427. The next prime is 18048463. The reversal of 18048445 is 54484081.

It is an interprime number because it is at equal distance from previous prime (18048427) and next prime (18048463).

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 18048445 - 2⁹ = 18047933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18048445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78357 + ... + 78586.

It is an arithmetic number, because the mean of its divisors is an integer number (2824992).

Almost surely, 2^18048445 is an apocalyptic number.

It is an amenable number.

18048445 is a deficient number, since it is larger than the sum of its proper divisors (4551491).

18048445 is a wasteful number, since it uses less digits than its factorization.

18048445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156971.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 18048445 is about 4248.3461487972. The cubic root of 18048445 is about 262.3090432832.

The spelling of 18048445 in words is "eighteen million, forty-eight thousand, four hundred forty-five".