2280645 has 24 divisors (see below), whose sum is σ = 4024800. Its totient is φ = 1194336.

The previous prime is 2280637. The next prime is 2280661. The reversal of 2280645 is 5460822.

It is not a de Polignac number, because 2280645 - 2³ = 2280637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2226 + ... + 3084.

It is an arithmetic number, because the mean of its divisors is an integer number (167700).

2^2280645 is an apocalyptic number.

It is an amenable number.

2280645 is a deficient number, since it is larger than the sum of its proper divisors (1744155).

2280645 is a wasteful number, since it uses less digits than its factorization.

2280645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2280645 is about 1510.1804527936. The cubic root of 2280645 is about 131.6292973762.

The spelling of 2280645 in words is "two million, two hundred eighty thousand, six hundred forty-five".