4201420340 has 24 divisors (see below), whose sum is σ = 9501674280. Its totient is φ = 1551293568.

The previous prime is 4201420339. The next prime is 4201420397. The reversal of 4201420340 is 430241024.

It can be written as a sum of positive squares in 4 ways, for example, as 116165284 + 4085255056 = 10778^2 + 63916^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8079395 + ... + 8079914.

It is an arithmetic number, because the mean of its divisors is an integer number (395903095).

Almost surely, 2^4201420340 is an apocalyptic number.

It is an amenable number.

4201420340 is an abundant number, since it is smaller than the sum of its proper divisors (5300253940).

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

4201420340 is a wasteful number, since it uses less digits than its factorization.

4201420340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16159331 (or 16159329 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4201420340 is about 64818.3642187922. The cubic root of 4201420340 is about 1613.6104999109.

Adding to 4201420340 its reverse (430241024), we get a palindrome (4631661364).

The spelling of 4201420340 in words is "four billion, two hundred one million, four hundred twenty thousand, three hundred forty".