1845441 has 12 divisors (see below), whose sum is σ = 2870868. Its totient is φ = 1135584.

The previous prime is 1845427. The next prime is 1845457. The reversal of 1845441 is 1445481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 1199025 = 804^2 + 1095^2 .

It is not a de Polignac number, because 1845441 - 2¹⁰ = 1844417 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1845421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7770 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (239239).

2^1845441 is an apocalyptic number.

It is an amenable number.

1845441 is a deficient number, since it is larger than the sum of its proper divisors (1025427).

1845441 is a wasteful number, since it uses less digits than its factorization.

1845441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15792 (or 15789 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1845441 is about 1358.4700953646. The cubic root of 1845441 is about 122.6591794356.

It can be divided in two parts, 184 and 5441, that added together give a square (5625 = 75²).

The spelling of 1845441 in words is "one million, eight hundred forty-five thousand, four hundred forty-one".