440626066 has 4 divisors (see below), whose sum is σ = 660939102. Its totient is φ = 220313032.

The previous prime is 440626061. The next prime is 440626097. The reversal of 440626066 is 660626044.

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., 387263041 + 53363025 = 19679^2 + 7305^2 .

It is not an unprimeable number, because it can be changed into a prime (440626061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110156515 + ... + 110156518.

Almost surely, 2^440626066 is an apocalyptic number.

440626066 is a deficient number, since it is larger than the sum of its proper divisors (220313036).

440626066 is a wasteful number, since it uses less digits than its factorization.

440626066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220313035.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 440626066 is about 20991.0949214185. The cubic root of 440626066 is about 760.9510634984.

The spelling of 440626066 in words is "four hundred forty million, six hundred twenty-six thousand, sixty-six".