5400040005 has 24 divisors (see below), whose sum is σ = 9398926680. Its totient is φ = 2868065280.

The previous prime is 5400040003. The next prime is 5400040007. The reversal of 5400040005 is 5000400045.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5400040003) and next prime (5400040007).

It can be written as a sum of positive squares in 4 ways, for example, as 58476609 + 5341563396 = 7647^2 + 73086^2 .

It is not a de Polignac number, because 5400040005 - 2¹ = 5400040003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5400040005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400040003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238120 + ... + 259809.

It is an arithmetic number, because the mean of its divisors is an integer number (391621945).

Almost surely, 2^5400040005 is an apocalyptic number.

It is an amenable number.

5400040005 is a deficient number, since it is larger than the sum of its proper divisors (3998886675).

5400040005 is a wasteful number, since it uses less digits than its factorization.

5400040005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498181 (or 498178 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 5400040005 is about 73484.9644825389. The cubic root of 5400040005 is about 1754.4149753366.

The spelling of 5400040005 in words is "five billion, four hundred million, forty thousand, five".