1814436 has 36 divisors (see below), whose sum is σ = 4940572. Its totient is φ = 558144.

The previous prime is 1814431. The next prime is 1814453. The reversal of 1814436 is 6344181.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 1454436 = 600^2 + 1206^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1814431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1471 + ... + 2406.

2^1814436 is an apocalyptic number.

It is an amenable number.

1814436 is an abundant number, since it is smaller than the sum of its proper divisors (3126136).

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

1814436 is a wasteful number, since it uses less digits than its factorization.

1814436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900 (or 3895 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1814436 is about 1347.0100222344. The cubic root of 1814436 is about 121.9683694762.

Subtracting from 1814436 its sum of digits (27), we obtain a square (1814409 = 1347²).

The spelling of 1814436 in words is "one million, eight hundred fourteen thousand, four hundred thirty-six".