440413420403 has 4 divisors (see below), whose sum is σ = 480451004088. Its totient is φ = 400375836720.

The previous prime is 440413420397. The next prime is 440413420423. The reversal of 440413420403 is 304024314044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440413420403 - 2¹⁰ = 440413419379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440413420423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20018791826 + ... + 20018791847.

It is an arithmetic number, because the mean of its divisors is an integer number (120112751022).

Almost surely, 2^440413420403 is an apocalyptic number.

440413420403 is a deficient number, since it is larger than the sum of its proper divisors (40037583685).

440413420403 is a wasteful number, since it uses less digits than its factorization.

440413420403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40037583684.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 440413420403 its reverse (304024314044), we get a palindrome (744437734447).

The spelling of 440413420403 in words is "four hundred forty billion, four hundred thirteen million, four hundred twenty thousand, four hundred three".