240242111405 has 8 divisors (see below), whose sum is σ = 288310556184. Its totient is φ = 192180340800.

The previous prime is 240242111401. The next prime is 240242111429. The reversal of 240242111405 is 504111242042.

It can be written as a sum of positive squares in 4 ways, for example, as 10174151689 + 230067959716 = 100867^2 + 479654^2 .

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

It is not a de Polignac number, because 240242111405 - 2² = 240242111401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240242111401) 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, 1589006 + ... + 1733615.

It is an arithmetic number, because the mean of its divisors is an integer number (36038819523).

Almost surely, 2^240242111405 is an apocalyptic number.

It is an amenable number.

240242111405 is a deficient number, since it is larger than the sum of its proper divisors (48068444779).

240242111405 is a wasteful number, since it uses less digits than its factorization.

240242111405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337087.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 240242111405 its reverse (504111242042), we get a palindrome (744353353447).

The spelling of 240242111405 in words is "two hundred forty billion, two hundred forty-two million, one hundred eleven thousand, four hundred five".