5181240 has 32 divisors (see below), whose sum is σ = 15544080. Its totient is φ = 1381632.

The previous prime is 5181223. The next prime is 5181251. The reversal of 5181240 is 421815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21469 + ... + 21708.

Almost surely, 2^5181240 is an apocalyptic number.

It is an amenable number.

5181240 is an abundant number, since it is smaller than the sum of its proper divisors (10362840).

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

5181240 is a wasteful number, since it uses less digits than its factorization.

5181240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43191 (or 43187 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 5181240 is about 2276.2337314081. The cubic root of 5181240 is about 173.0392284102.

The spelling of 5181240 in words is "five million, one hundred eighty-one thousand, two hundred forty".