1944266 has 4 divisors (see below), whose sum is σ = 2916402. Its totient is φ = 972132.

The previous prime is 1944223. The next prime is 1944281. The reversal of 1944266 is 6624491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6624491 = 67 ⋅98873.

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 108241 = 1355^2 + 329^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486065 + ... + 486068.

2^1944266 is an apocalyptic number.

1944266 is a deficient number, since it is larger than the sum of its proper divisors (972136).

1944266 is an equidigital number, since it uses as much as digits as its factorization.

1944266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972135.

The product of its digits is 10368, while the sum is 32.

The square root of 1944266 is about 1394.3693915172. The cubic root of 1944266 is about 124.8107215340.

The spelling of 1944266 in words is "one million, nine hundred forty-four thousand, two hundred sixty-six".