2640583 has 12 divisors (see below), whose sum is σ = 2941960. Its totient is φ = 2368080.

The previous prime is 2640581. The next prime is 2640643. The reversal of 2640583 is 3850462.

It is not a de Polignac number, because 2640583 - 2¹ = 2640581 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16741 + ... + 16897.

2^2640583 is an apocalyptic number.

2640583 is a deficient number, since it is larger than the sum of its proper divisors (301377).

2640583 is a wasteful number, since it uses less digits than its factorization.

2640583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2640583 is about 1624.9870768717. The cubic root of 2640583 is about 138.2186375301.

It can be divided in two parts, 2640 and 583, that added together give a palindrome (3223).

The spelling of 2640583 in words is "two million, six hundred forty thousand, five hundred eighty-three".