1944458 has 4 divisors (see below), whose sum is σ = 2916690. Its totient is φ = 972228.

The previous prime is 1944457. The next prime is 1944469. The reversal of 1944458 is 8544491.

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., 1315609 + 628849 = 1147^2 + 793^2 .

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1944457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486113 + ... + 486116.

2^1944458 is an apocalyptic number.

1944458 is a deficient number, since it is larger than the sum of its proper divisors (972232).

1944458 is an equidigital number, since it uses as much as digits as its factorization.

1944458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972231.

The product of its digits is 23040, while the sum is 35.

The square root of 1944458 is about 1394.4382381447. The cubic root of 1944458 is about 124.8148298315.

The spelling of 1944458 in words is "one million, nine hundred forty-four thousand, four hundred fifty-eight".