240105138 has 32 divisors (see below), whose sum is σ = 591029376. Its totient is φ = 63324288.

The previous prime is 240105101. The next prime is 240105157. The reversal of 240105138 is 831501042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219331 + ... + 220422.

It is an arithmetic number, because the mean of its divisors is an integer number (18469668).

Almost surely, 2^240105138 is an apocalyptic number.

240105138 is an abundant number, since it is smaller than the sum of its proper divisors (350924238).

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

240105138 is a wasteful number, since it uses less digits than its factorization.

240105138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439778.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 240105138 is about 15495.3263276383. The cubic root of 240105138 is about 621.5372346680.

The spelling of 240105138 in words is "two hundred forty million, one hundred five thousand, one hundred thirty-eight".