1944418 has 12 divisors (see below), whose sum is σ = 3392982. Its totient is φ = 833280.

The previous prime is 1944401. The next prime is 1944457. The reversal of 1944418 is 8144491.

It can be written as a sum of positive squares in only one way, i.e., 1940449 + 3969 = 1393^2 + 63^2 .

It is a super-2 number, since 2×1944418² = 7561522717448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1944418.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9823 + ... + 10018.

2^1944418 is an apocalyptic number.

1944418 is a deficient number, since it is larger than the sum of its proper divisors (1448564).

1944418 is a wasteful number, since it uses less digits than its factorization.

1944418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19857 (or 19850 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 1944418 is about 1394.4238953776. The cubic root of 1944418 is about 124.8139739585.

The spelling of 1944418 in words is "one million, nine hundred forty-four thousand, four hundred eighteen".