4220736040249 has 3 divisors (see below), whose sum is σ = 4220738094693. Its totient is φ = 4220733985806.

The previous prime is 4220736040247. The next prime is 4220736040253. The reversal of 4220736040249 is 9420406370224.

The square root of 4220736040249 is 2054443.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4220736040249 - 2¹ = 4220736040247 is a prime.

It is a super-3 number, since 3×4220736040249³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4220736040247) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1027222 + ... + 3081664.

It is an arithmetic number, because the mean of its divisors is an integer number (1406912698231).

Almost surely, 2^{4220736040249} is an apocalyptic number.

4220736040249 is the 2054443-rd square number.

4220736040249 is the 1027222-nd centered octagonal number.

It is an amenable number.

4220736040249 is a deficient number, since it is larger than the sum of its proper divisors (2054444).

4220736040249 is an frugal number, since it uses more digits than its factorization.

4220736040249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108886 (or 2054443 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 4220736040249 in words is "four trillion, two hundred twenty billion, seven hundred thirty-six million, forty thousand, two hundred forty-nine".