1859364 has 72 divisors (see below), whose sum is σ = 5274360. Its totient is φ = 548352.

The previous prime is 1859353. The next prime is 1859369. The reversal of 1859364 is 4639581.

1859364 = T₂₄₁ + T₂₄₂ + ... + T₂₉₂.

1859364 is a `hidden beast` number, since 1 + 8 + 593 + 64 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 116964 + 1742400 = 342^2 + 1320^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1859369) 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 23 ways as a sum of consecutive naturals, for example, 13504 + ... + 13640.

It is an arithmetic number, because the mean of its divisors is an integer number (73255).

2^1859364 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 1859364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2637180).

1859364 is an abundant number, since it is smaller than the sum of its proper divisors (3414996).

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

1859364 is a wasteful number, since it uses less digits than its factorization.

1859364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1859364 is about 1363.5849808501. The cubic root of 1859364 is about 122.9668758712.

It can be divided in two parts, 1859 and 364, that multiplied together give a palindrome (676676).

The spelling of 1859364 in words is "one million, eight hundred fifty-nine thousand, three hundred sixty-four".