240055638 has 8 divisors (see below), whose sum is σ = 480111288. Its totient is φ = 80018544.

The previous prime is 240055619. The next prime is 240055639. The reversal of 240055638 is 836550042.

240055638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

240055638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 240055599 and 240055608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240055639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20004631 + ... + 20004642.

It is an arithmetic number, because the mean of its divisors is an integer number (60013911).

Almost surely, 2^240055638 is an apocalyptic number.

240055638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240055638 is a wasteful number, since it uses less digits than its factorization.

240055638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40009278.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 240055638 is about 15493.7289894977. The cubic root of 240055638 is about 621.4945197587.

The spelling of 240055638 in words is "two hundred forty million, fifty-five thousand, six hundred thirty-eight".