1944090 has 24 divisors (see below), whose sum is σ = 5054868. Its totient is φ = 518400.

The previous prime is 1944079. The next prime is 1944113. The reversal of 1944090 is 904491.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 47961 = 1377^2 + 219^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10711 + ... + 10890.

2^1944090 is an apocalyptic number.

1944090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1944090 is an abundant number, since it is smaller than the sum of its proper divisors (3110778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1944090 is a wasteful number, since it uses less digits than its factorization.

1944090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21614 (or 21611 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1944090 is about 1394.3062791223. The cubic root of 1944090 is about 124.8069553569.

The spelling of 1944090 in words is "one million, nine hundred forty-four thousand, ninety".