2273845 has 12 divisors (see below), whose sum is σ = 3174444. Its totient is φ = 1559040.

The previous prime is 2273833. The next prime is 2273851. The reversal of 2273845 is 5483722.

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 790321 = 1218^2 + 889^2 .

It is not a de Polignac number, because 2273845 - 2⁹ = 2273333 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4396 + ... + 4885.

It is an arithmetic number, because the mean of its divisors is an integer number (264537).

2^2273845 is an apocalyptic number.

It is an amenable number.

2273845 is a deficient number, since it is larger than the sum of its proper divisors (900599).

2273845 is an equidigital number, since it uses as much as digits as its factorization.

2273845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300 (or 9293 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 2273845 is about 1507.9273855196. The cubic root of 2273845 is about 131.4983446133.

The spelling of 2273845 in words is "two million, two hundred seventy-three thousand, eight hundred forty-five".