18035413 has 6 divisors (see below), whose sum is σ = 19824182. Its totient is φ = 16395720.

The previous prime is 18035411. The next prime is 18035429. The reversal of 18035413 is 31453081.

It can be written as a sum of positive squares in only one way, i.e., 12545764 + 5489649 = 3542^2 + 2343^2 .

It is not a de Polignac number, because 18035413 - 2¹ = 18035411 is a prime.

It is a super-2 number, since 2×18035413² = 650552244161138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18035411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74406 + ... + 74647.

Almost surely, 2^18035413 is an apocalyptic number.

It is an amenable number.

18035413 is a deficient number, since it is larger than the sum of its proper divisors (1788769).

18035413 is a wasteful number, since it uses less digits than its factorization.

18035413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149075 (or 149064 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 18035413 is about 4246.8120985040. The cubic root of 18035413 is about 262.2458940840.

Adding to 18035413 its reverse (31453081), we get a palindrome (49488494).

The spelling of 18035413 in words is "eighteen million, thirty-five thousand, four hundred thirteen".