440440402 has 4 divisors (see below), whose sum is σ = 660660606. Its totient is φ = 220220200.

The previous prime is 440440391. The next prime is 440440423. The reversal of 440440402 is 204044044.

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

It can be written as a sum of positive squares in only one way, i.e., 240529081 + 199911321 = 15509^2 + 14139^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110099 + ... + 110110102.

Almost surely, 2^440440402 is an apocalyptic number.

440440402 is a deficient number, since it is larger than the sum of its proper divisors (220220204).

440440402 is a wasteful number, since it uses less digits than its factorization.

440440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220220203.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 440440402 is about 20986.6720086821. The cubic root of 440440402 is about 760.8441693332.

Adding to 440440402 its reverse (204044044), we get a palindrome (644484446).

The spelling of 440440402 in words is "four hundred forty million, four hundred forty thousand, four hundred two".