1948444 has 6 divisors (see below), whose sum is σ = 3409784. Its totient is φ = 974220.

The previous prime is 1948433. The next prime is 1948447. The reversal of 1948444 is 4448491.

It is a super-2 number, since 2×1948444² = 7592868042272, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243552 + ... + 243559.

2^1948444 is an apocalyptic number.

It is an amenable number.

1948444 is a deficient number, since it is larger than the sum of its proper divisors (1461340).

1948444 is a wasteful number, since it uses less digits than its factorization.

1948444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487115 (or 487113 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 1948444 is about 1395.8667558188. The cubic root of 1948444 is about 124.9000587820.

It can be divided in two parts, 194844 and 4, that multiplied together give a triangular number (779376 = T₁₂₄₈).

The spelling of 1948444 in words is "one million, nine hundred forty-eight thousand, four hundred forty-four".