2620189 has 16 divisors (see below), whose sum is σ = 3132864. Its totient is φ = 2160000.

The previous prime is 2620181. The next prime is 2620199. The reversal of 2620189 is 9810262.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2620189 - 2³ = 2620181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10314 + ... + 10564.

It is an arithmetic number, because the mean of its divisors is an integer number (195804).

2^2620189 is an apocalyptic number.

It is an amenable number.

2620189 is a deficient number, since it is larger than the sum of its proper divisors (512675).

2620189 is a wasteful number, since it uses less digits than its factorization.

2620189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2620189 is about 1618.6997868660. The cubic root of 2620189 is about 137.8618830963.

It can be divided in two parts, 2620 and 189, that added together give a square (2809 = 53²).

The spelling of 2620189 in words is "two million, six hundred twenty thousand, one hundred eighty-nine".