1858272 has 48 divisors (see below), whose sum is σ = 5256720. Its totient is φ = 571392.

The previous prime is 1858267. The next prime is 1858279. The reversal of 1858272 is 2728581.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1858279) 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, 504 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (109515).

2^1858272 is an apocalyptic number.

1858272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1858272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628360).

1858272 is an abundant number, since it is smaller than the sum of its proper divisors (3398448).

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

1858272 is a wasteful number, since it uses less digits than its factorization.

1858272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515 (or 1507 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 1858272 is about 1363.1845069542. The cubic root of 1858272 is about 122.9427984404.

The spelling of 1858272 in words is "one million, eight hundred fifty-eight thousand, two hundred seventy-two".