240000231421 has 8 divisors (see below), whose sum is σ = 254331617400. Its totient is φ = 226072546560.

The previous prime is 240000231391. The next prime is 240000231431. The reversal of 240000231421 is 124132000042.

It can be written as a sum of positive squares in 4 ways, for example, as 14863267225 + 225136964196 = 121915^2 + 474486^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 240000231421 - 2⁷ = 240000231293 is a prime.

It is a super-2 number, since 2×240000231421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240000231431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100924056 + ... + 100926433.

It is an arithmetic number, because the mean of its divisors is an integer number (31791452175).

Almost surely, 2^240000231421 is an apocalyptic number.

It is an amenable number.

240000231421 is a deficient number, since it is larger than the sum of its proper divisors (14331385979).

240000231421 is a wasteful number, since it uses less digits than its factorization.

240000231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201850559.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 240000231421 its reverse (124132000042), we get a palindrome (364132231463).

The spelling of 240000231421 in words is "two hundred forty billion, two hundred thirty-one thousand, four hundred twenty-one".