18482405 has 4 divisors (see below), whose sum is σ = 22178892. Its totient is φ = 14785920.

The previous prime is 18482371. The next prime is 18482441. The reversal of 18482405 is 50428481.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50428481 = 373 ⋅135197.

It can be written as a sum of positive squares in 2 ways, for example, as 1852321 + 16630084 = 1361^2 + 4078^2 .

It is not a de Polignac number, because 18482405 - 2⁶ = 18482341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848236 + ... + 1848245.

It is an arithmetic number, because the mean of its divisors is an integer number (5544723).

Almost surely, 2^18482405 is an apocalyptic number.

It is an amenable number.

18482405 is a deficient number, since it is larger than the sum of its proper divisors (3696487).

18482405 is an equidigital number, since it uses as much as digits as its factorization.

18482405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696486.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 18482405 is about 4299.1167697563. The cubic root of 18482405 is about 264.3947501672.

The spelling of 18482405 in words is "eighteen million, four hundred eighty-two thousand, four hundred five".