1444778 has 4 divisors (see below), whose sum is σ = 2167170. Its totient is φ = 722388.

The previous prime is 1444777. The next prime is 1444787. The reversal of 1444778 is 8774441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8774441 = 13 ⋅674957.

It can be written as a sum of positive squares in only one way, i.e., 1026169 + 418609 = 1013^2 + 647^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1444771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361193 + ... + 361196.

2^1444778 is an apocalyptic number.

1444778 is a deficient number, since it is larger than the sum of its proper divisors (722392).

1444778 is an equidigital number, since it uses as much as digits as its factorization.

1444778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722391.

The product of its digits is 25088, while the sum is 35.

The square root of 1444778 is about 1201.9891846435. The cubic root of 1444778 is about 113.0490819750.

It can be divided in two parts, 1444 and 778, that added together give a palindrome (2222).

The spelling of 1444778 in words is "one million, four hundred forty-four thousand, seven hundred seventy-eight".