444778 has 4 divisors (see below), whose sum is σ = 667170. Its totient is φ = 222388.

The previous prime is 444767. The next prime is 444791. The reversal of 444778 is 877444.

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., 413449 + 31329 = 643^2 + 177^2 .

It is a plaindrome in base 10 and base 15.

It is an unprimeable number.

444778 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111193 + ... + 111196.

2⁴⁴⁴⁷⁷⁸ is an apocalyptic number.

444778 is a deficient number, since it is larger than the sum of its proper divisors (222392).

444778 is a wasteful number, since it uses less digits than its factorization.

444778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222391.

The product of its digits is 25088, while the sum is 34.

The square root of 444778 is about 666.9167864134. The cubic root of 444778 is about 76.3333693526. Note that the first 4 decimals are identical.

The spelling of 444778 in words is "four hundred forty-four thousand, seven hundred seventy-eight".