18832945 has 8 divisors (see below), whose sum is σ = 22694760. Its totient is φ = 15002880.

The previous prime is 18832943. The next prime is 18832973. The reversal of 18832945 is 54923881.

It can be written as a sum of positive squares in 4 ways, for example, as 10265616 + 8567329 = 3204^2 + 2927^2 .

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

It is not a de Polignac number, because 18832945 - 2¹ = 18832943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18832898 and 18832907.

It is not an unprimeable number, because it can be changed into a prime (18832943) 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, 6610 + ... + 9019.

It is an arithmetic number, because the mean of its divisors is an integer number (2836845).

Almost surely, 2^18832945 is an apocalyptic number.

It is an amenable number.

18832945 is a deficient number, since it is larger than the sum of its proper divisors (3861815).

18832945 is a wasteful number, since it uses less digits than its factorization.

18832945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15875.

The product of its digits is 69120, while the sum is 40.

The square root of 18832945 is about 4339.6941136444. The cubic root of 18832945 is about 266.0558092332.

It can be divided in two parts, 188 and 32945, that added together give a palindrome (33133).

The spelling of 18832945 in words is "eighteen million, eight hundred thirty-two thousand, nine hundred forty-five".