5418405 has 18 divisors (see below), whose sum is σ = 9419046. Its totient is φ = 2881488.

The previous prime is 5418377. The next prime is 5418407. The reversal of 5418405 is 5048145.

5418405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4334724 + 1083681 = 2082^2 + 1041^2 .

It is not a de Polignac number, because 5418405 - 2⁶ = 5418341 is a prime.

It is a super-2 number, since 2×5418405² = 58718225488050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5418407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15442 + ... + 15788.

Almost surely, 2^5418405 is an apocalyptic number.

It is an amenable number.

5418405 is a deficient number, since it is larger than the sum of its proper divisors (4000641).

5418405 is an equidigital number, since it uses as much as digits as its factorization.

5418405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 5418405 is about 2327.7467645773. The cubic root of 5418405 is about 175.6401588128.

The spelling of 5418405 in words is "five million, four hundred eighteen thousand, four hundred five".