240005140 has 12 divisors (see below), whose sum is σ = 504010836. Its totient is φ = 96002048.

The previous prime is 240005137. The next prime is 240005153. The reversal of 240005140 is 41500042.

It can be written as a sum of positive squares in 2 ways, for example, as 190274436 + 49730704 = 13794^2 + 7052^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6000109 + ... + 6000148.

It is an arithmetic number, because the mean of its divisors is an integer number (42000903).

Almost surely, 2^240005140 is an apocalyptic number.

240005140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240005140 is an abundant number, since it is smaller than the sum of its proper divisors (264005696).

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

240005140 is a wasteful number, since it uses less digits than its factorization.

240005140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12000266 (or 12000264 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 240005140 is about 15492.0992767281. The cubic root of 240005140 is about 621.4509375966.

Adding to 240005140 its reverse (41500042), we get a palindrome (281505182).

The spelling of 240005140 in words is "two hundred forty million, five thousand, one hundred forty".