5406138 has 24 divisors (see below), whose sum is σ = 11794068. Its totient is φ = 1789632.

The previous prime is 5406133. The next prime is 5406139. The reversal of 5406138 is 8316045.

5406138 is a `hidden beast` number, since 5 + 40 + 613 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5349969 + 56169 = 2313^2 + 237^2 .

It is not an unprimeable number, because it can be changed into a prime (5406131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1870 + ... + 3782.

Almost surely, 2^5406138 is an apocalyptic number.

5406138 is an abundant number, since it is smaller than the sum of its proper divisors (6387930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5406138 is a wasteful number, since it uses less digits than its factorization.

5406138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5406138 is about 2325.1103199633. The cubic root of 5406138 is about 175.5075117928.

The spelling of 5406138 in words is "five million, four hundred six thousand, one hundred thirty-eight".