2620530 has 48 divisors (see below), whose sum is σ = 7435584. Its totient is φ = 635040.

The previous prime is 2620529. The next prime is 2620531. The reversal of 2620530 is 350262.

It is an interprime number because it is at equal distance from previous prime (2620529) and next prime (2620531).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2620531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (154908).

2^2620530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2620530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3717792).

2620530 is an abundant number, since it is smaller than the sum of its proper divisors (4815054).

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

2620530 is a wasteful number, since it uses less digits than its factorization.

2620530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2620530 is about 1618.8051148918. The cubic root of 2620530 is about 137.8678634362.

Adding to 2620530 its reverse (350262), we get a palindrome (2970792).

The spelling of 2620530 in words is "two million, six hundred twenty thousand, five hundred thirty".