1371844 has 12 divisors (see below), whose sum is σ = 2414524. Its totient is φ = 681984.

The previous prime is 1371841. The next prime is 1371863. The reversal of 1371844 is 4481731.

It can be written as a sum of positive squares in 2 ways, for example, as 506944 + 864900 = 712^2 + 930^2 .

It is not an unprimeable number, because it can be changed into a prime (1371841) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 117 + ... + 1660.

2^1371844 is an apocalyptic number.

It is an amenable number.

1371844 is a deficient number, since it is larger than the sum of its proper divisors (1042680).

1371844 is a wasteful number, since it uses less digits than its factorization.

1371844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1972 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 1371844 is about 1171.2574439465. The cubic root of 1371844 is about 111.1138620060.

The spelling of 1371844 in words is "one million, three hundred seventy-one thousand, eight hundred forty-four".