2620249 has 8 divisors (see below), whose sum is σ = 2700000. Its totient is φ = 2541792.

The previous prime is 2620231. The next prime is 2620253. The reversal of 2620249 is 9420262.

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 2620249 - 2²¹ = 523097 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2620259) 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, 5002 + ... + 5500.

It is an arithmetic number, because the mean of its divisors is an integer number (337500).

2^2620249 is an apocalyptic number.

It is an amenable number.

2620249 is a deficient number, since it is larger than the sum of its proper divisors (79751).

2620249 is an equidigital number, since it uses as much as digits as its factorization.

2620249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2620249 is about 1618.7183201533. The cubic root of 2620249 is about 137.8629353931.

The spelling of 2620249 in words is "two million, six hundred twenty thousand, two hundred forty-nine".