2533818 has 64 divisors (see below), whose sum is σ = 6285312. Its totient is φ = 665280.

The previous prime is 2533813. The next prime is 2533829. The reversal of 2533818 is 8183352.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41508 + ... + 41568.

It is an arithmetic number, because the mean of its divisors is an integer number (98208).

2^2533818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2533818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3142656).

2533818 is an abundant number, since it is smaller than the sum of its proper divisors (3751494).

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

2533818 is a wasteful number, since it uses less digits than its factorization.

2533818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139.

The product of its digits is 5760, while the sum is 30.

The square root of 2533818 is about 1591.7970976227. The cubic root of 2533818 is about 136.3301164479.

The spelling of 2533818 in words is "two million, five hundred thirty-three thousand, eight hundred eighteen".