18052445 has 8 divisors (see below), whose sum is σ = 21687480. Its totient is φ = 14425600.

The previous prime is 18052427. The next prime is 18052469. The reversal of 18052445 is 54425081.

It can be written as a sum of positive squares in 4 ways, for example, as 4072324 + 13980121 = 2018^2 + 3739^2 .

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

It is not a de Polignac number, because 18052445 - 2⁶ = 18052381 is a prime.

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, 5045 + ... + 7845.

It is an arithmetic number, because the mean of its divisors is an integer number (2710935).

Almost surely, 2^18052445 is an apocalyptic number.

It is an amenable number.

18052445 is a deficient number, since it is larger than the sum of its proper divisors (3635035).

18052445 is a wasteful number, since it uses less digits than its factorization.

18052445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 18052445 is about 4248.8168941483. The cubic root of 18052445 is about 262.3284199972.

It can be divided in two parts, 180 and 52445, that added together give a palindrome (52625).

The spelling of 18052445 in words is "eighteen million, fifty-two thousand, four hundred forty-five".