1810536 has 64 divisors (see below), whose sum is σ = 5577600. Its totient is φ = 476928.

The previous prime is 1810531. The next prime is 1810553. The reversal of 1810536 is 6350181.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1810531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1770 + ... + 2598.

It is an arithmetic number, because the mean of its divisors is an integer number (87150).

2^1810536 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 1810536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788800).

1810536 is an abundant number, since it is smaller than the sum of its proper divisors (3767064).

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

1810536 is a wasteful number, since it uses less digits than its factorization.

1810536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1810536 is about 1345.5615927931. The cubic root of 1810536 is about 121.8809193706.

It can be divided in two parts, 1810 and 536, that added together give a triangular number (2346 = T₆₈).

The spelling of 1810536 in words is "one million, eight hundred ten thousand, five hundred thirty-six".