2640333 has 8 divisors (see below), whose sum is σ = 3528000. Its totient is φ = 1756448.

The previous prime is 2640317. The next prime is 2640343. The reversal of 2640333 is 3330462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2640333 - 2⁴ = 2640317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1993 + ... + 3041.

It is an arithmetic number, because the mean of its divisors is an integer number (441000).

2^2640333 is an apocalyptic number.

It is an amenable number.

2640333 is a deficient number, since it is larger than the sum of its proper divisors (887667).

2640333 is a wasteful number, since it uses less digits than its factorization.

2640333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 2640333 is about 1624.9101513622. The cubic root of 2640333 is about 138.2142753936.

Adding to 2640333 its reverse (3330462), we get a palindrome (5970795).

The spelling of 2640333 in words is "two million, six hundred forty thousand, three hundred thirty-three".