1845272 has 32 divisors (see below), whose sum is σ = 4067280. Its totient is φ = 773760.

The previous prime is 1845271. The next prime is 1845289. The reversal of 1845272 is 2725481.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338 + ... + 1950.

2^1845272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1845272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033640).

1845272 is an abundant number, since it is smaller than the sum of its proper divisors (2222008).

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

1845272 is a wasteful number, since it uses less digits than its factorization.

1845272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643 (or 1639 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1845272 is about 1358.4078916143. The cubic root of 1845272 is about 122.6554350670.

The spelling of 1845272 in words is "one million, eight hundred forty-five thousand, two hundred seventy-two".