2649385 has 8 divisors (see below), whose sum is σ = 3265416. Its totient is φ = 2062080.

The previous prime is 2649371. The next prime is 2649391. The reversal of 2649385 is 5839462.

It can be written as a sum of positive squares in 4 ways, for example, as 114921 + 2534464 = 339^2 + 1592^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2649385 - 2¹³ = 2641193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a d-powerful number, because it can be written as 2¹¹ + 6⁴ + 4¹⁰ + 9 + 3¹³ + 8 + 5⁵ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6976 + ... + 7345.

It is an arithmetic number, because the mean of its divisors is an integer number (408177).

2^2649385 is an apocalyptic number.

It is an amenable number.

2649385 is a deficient number, since it is larger than the sum of its proper divisors (616031).

2649385 is a wasteful number, since it uses less digits than its factorization.

2649385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14363.

The product of its digits is 51840, while the sum is 37.

The square root of 2649385 is about 1627.6931529008. The cubic root of 2649385 is about 138.3720444555.

The spelling of 2649385 in words is "two million, six hundred forty-nine thousand, three hundred eighty-five".