407244243 has 16 divisors (see below), whose sum is σ = 633228800. Its totient is φ = 232710408.

The previous prime is 407244223. The next prime is 407244251. The reversal of 407244243 is 342442704.

It is a happy number.

It is not a de Polignac number, because 407244243 - 2¹³ = 407236051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 407244243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407244223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196855 + ... + 198912.

It is an arithmetic number, because the mean of its divisors is an integer number (39576800).

Almost surely, 2^407244243 is an apocalyptic number.

407244243 is a deficient number, since it is larger than the sum of its proper divisors (225984557).

407244243 is an equidigital number, since it uses as much as digits as its factorization.

407244243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395791 (or 395777 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 30.

The square root of 407244243 is about 20180.2934319598. The cubic root of 407244243 is about 741.2277178981.

Adding to 407244243 its reverse (342442704), we get a palindrome (749686947).

It can be divided in two parts, 407 and 244243, that added together give a triangular number (244650 = T₆₉₉).

The spelling of 407244243 in words is "four hundred seven million, two hundred forty-four thousand, two hundred forty-three".