1601844 has 24 divisors (see below), whose sum is σ = 3867360. Its totient is φ = 515424.

The previous prime is 1601843. The next prime is 1601849. The reversal of 1601844 is 4481061.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1954 + ... + 2649.

It is an arithmetic number, because the mean of its divisors is an integer number (161140).

2^1601844 is an apocalyptic number.

It is an amenable number.

1601844 is an abundant number, since it is smaller than the sum of its proper divisors (2265516).

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

1601844 is a wasteful number, since it uses less digits than its factorization.

1601844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639 (or 4637 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1601844 is about 1265.6397591732. The cubic root of 1601844 is about 117.0056246839.

The spelling of 1601844 in words is "one million, six hundred one thousand, eight hundred forty-four".