440077 has 6 divisors (see below), whose sum is σ = 483854. Its totient is φ = 399960.

The previous prime is 440047. The next prime is 440087. The reversal of 440077 is 770044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 256036 + 184041 = 506^2 + 429^2 .

It is not a de Polignac number, because 440077 - 2⁷ = 439949 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440047) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 1698 + ... + 1939.

2⁴⁴⁰⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

440077 is a deficient number, since it is larger than the sum of its proper divisors (43777).

440077 is a wasteful number, since it uses less digits than its factorization.

440077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659 (or 3648 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 440077 is about 663.3829964658. The cubic root of 440077 is about 76.0634857343.

Adding to 440077 its reverse (770044), we get a palindrome (1210121).

The spelling of 440077 in words is "four hundred forty thousand, seventy-seven", and thus it is an iban number.