2275649 has 4 divisors (see below), whose sum is σ = 2395440. Its totient is φ = 2155860.

The previous prime is 2275639. The next prime is 2275657. The reversal of 2275649 is 9465722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2275649 - 2⁴ = 2275633 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 2²⁰ + 7⁷ + 5⁸ + 6⁵ + 4⁵ + 9 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2275619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59867 + ... + 59904.

It is an arithmetic number, because the mean of its divisors is an integer number (598860).

2^2275649 is an apocalyptic number.

It is an amenable number.

2275649 is a deficient number, since it is larger than the sum of its proper divisors (119791).

2275649 is a wasteful number, since it uses less digits than its factorization.

2275649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119790.

The product of its digits is 30240, while the sum is 35.

The square root of 2275649 is about 1508.5254389635. The cubic root of 2275649 is about 131.5331110268.

The spelling of 2275649 in words is "two million, two hundred seventy-five thousand, six hundred forty-nine".