2538620 has 24 divisors (see below), whose sum is σ = 6093024. Its totient is φ = 870336.

The previous prime is 2538619. The next prime is 2538623. The reversal of 2538620 is 268352.

It is a d-powerful number, because it can be written as 2¹² + 5⁸ + 3³ + 8² + 6⁶ + 2²¹ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 2538620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538623) 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 7 ways as a sum of consecutive naturals, for example, 8927 + ... + 9206.

It is an arithmetic number, because the mean of its divisors is an integer number (253876).

2^2538620 is an apocalyptic number.

2538620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2538620 is an abundant number, since it is smaller than the sum of its proper divisors (3554404).

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

2538620 is a wasteful number, since it uses less digits than its factorization.

2538620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18149 (or 18147 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2538620 is about 1593.3047417239. The cubic root of 2538620 is about 136.4161847308.

The spelling of 2538620 in words is "two million, five hundred thirty-eight thousand, six hundred twenty".