440120402 has 8 divisors (see below), whose sum is σ = 678023436. Its totient is φ = 214112592.

The previous prime is 440120393. The next prime is 440120407. The reversal of 440120402 is 204021044.

It can be written as a sum of positive squares in 2 ways, for example, as 439782841 + 337561 = 20971^2 + 581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (440120407) 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, 2973713 + ... + 2973860.

Almost surely, 2^440120402 is an apocalyptic number.

440120402 is a deficient number, since it is larger than the sum of its proper divisors (237903034).

440120402 is a wasteful number, since it uses less digits than its factorization.

440120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947612.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 440120402 is about 20979.0467371613. The cubic root of 440120402 is about 760.6598620498.

Adding to 440120402 its reverse (204021044), we get a palindrome (644141446).

The spelling of 440120402 in words is "four hundred forty million, one hundred twenty thousand, four hundred two".