440229386 has 4 divisors (see below), whose sum is σ = 660344082. Its totient is φ = 220114692.

The previous prime is 440229379. The next prime is 440229389. The reversal of 440229386 is 683922044.

It is a happy number.

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., 361570225 + 78659161 = 19015^2 + 8869^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440229389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110057345 + ... + 110057348.

Almost surely, 2^440229386 is an apocalyptic number.

440229386 is a deficient number, since it is larger than the sum of its proper divisors (220114696).

440229386 is a wasteful number, since it uses less digits than its factorization.

440229386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220114695.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 440229386 is about 20981.6440251950. The cubic root of 440229386 is about 760.7226425316.

The spelling of 440229386 in words is "four hundred forty million, two hundred twenty-nine thousand, three hundred eighty-six".