1851036 has 48 divisors (see below), whose sum is σ = 4851840. Its totient is φ = 544320.

The previous prime is 1851029. The next prime is 1851043. The reversal of 1851036 is 6301581.

It is an interprime number because it is at equal distance from previous prime (1851029) and next prime (1851043).

It is a junction number, because it is equal to n+sod(n) for n = 1850997 and 1851015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4695 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (101080).

2^1851036 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 1851036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2425920).

1851036 is an abundant number, since it is smaller than the sum of its proper divisors (3000804).

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

1851036 is a wasteful number, since it uses less digits than its factorization.

1851036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

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

The square root of 1851036 is about 1360.5278387449. The cubic root of 1851036 is about 122.7830135622.

It can be divided in two parts, 185 and 1036, that added together give a palindrome (1221).

The spelling of 1851036 in words is "one million, eight hundred fifty-one thousand, thirty-six".