4240201421 has 8 divisors (see below), whose sum is σ = 4634452224. Its totient is φ = 3862042560.

The previous prime is 4240201403. The next prime is 4240201487. The reversal of 4240201421 is 1241020424.

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 4240201421 - 2²⁶ = 4173092557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4240201393 and 4240201402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240281421) 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, 4022435 + ... + 4023488.

It is an arithmetic number, because the mean of its divisors is an integer number (579306528).

Almost surely, 2^4240201421 is an apocalyptic number.

It is an amenable number.

4240201421 is a deficient number, since it is larger than the sum of its proper divisors (394250803).

4240201421 is a wasteful number, since it uses less digits than its factorization.

4240201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045971.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4240201421 is about 65116.8290152400. The cubic root of 4240201421 is about 1618.5600959753.

Adding to 4240201421 its reverse (1241020424), we get a palindrome (5481221845).

The spelling of 4240201421 in words is "four billion, two hundred forty million, two hundred one thousand, four hundred twenty-one".