4240352250421 has 12 divisors (see below), whose sum is σ = 4932869684940. Its totient is φ = 3634429202880.

The previous prime is 4240352250413. The next prime is 4240352250467. The reversal of 4240352250421 is 1240522530424.

It can be written as a sum of positive squares in 2 ways, for example, as 3191600115025 + 1048752135396 = 1786505^2 + 1024086^2 .

It is not a de Polignac number, because 4240352250421 - 2³ = 4240352250413 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 (4240352254421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 743686 + ... + 3005623.

It is an arithmetic number, because the mean of its divisors is an integer number (411072473745).

Almost surely, 2^{4240352250421} is an apocalyptic number.

It is an amenable number.

4240352250421 is a deficient number, since it is larger than the sum of its proper divisors (692517434519).

4240352250421 is a wasteful number, since it uses less digits than its factorization.

4240352250421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772404 (or 3772397 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 4240352250421 its reverse (1240522530424), we get a palindrome (5480874780845).

The spelling of 4240352250421 in words is "four trillion, two hundred forty billion, three hundred fifty-two million, two hundred fifty thousand, four hundred twenty-one".