240782220438 has 16 divisors (see below), whose sum is σ = 481651166640. Its totient is φ = 80246285856.

The previous prime is 240782220433. The next prime is 240782220499. The reversal of 240782220438 is 834022287042.

It is a self number, because there is not a number n which added to its sum of digits gives 240782220438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240782220433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3577453 + ... + 3644136.

It is an arithmetic number, because the mean of its divisors is an integer number (30103197915).

Almost surely, 2^240782220438 is an apocalyptic number.

240782220438 is an abundant number, since it is smaller than the sum of its proper divisors (240868946202).

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

240782220438 is a wasteful number, since it uses less digits than its factorization.

240782220438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7227151.

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 240782220438 in words is "two hundred forty billion, seven hundred eighty-two million, two hundred twenty thousand, four hundred thirty-eight".