2273790 has 16 divisors (see below), whose sum is σ = 5457168. Its totient is φ = 606336.

The previous prime is 2273783. The next prime is 2273807. The reversal of 2273790 is 973722.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 75793 = 2273790 / (2 + 2 + 7 + 3 + 7 + 9 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37867 + ... + 37926.

It is an arithmetic number, because the mean of its divisors is an integer number (341073).

2^2273790 is an apocalyptic number.

2273790 is an abundant number, since it is smaller than the sum of its proper divisors (3183378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2273790 is a wasteful number, since it uses less digits than its factorization.

2273790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75803.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 2273790 is about 1507.9091484569. The cubic root of 2273790 is about 131.4972843729.

The spelling of 2273790 in words is "two million, two hundred seventy-three thousand, seven hundred ninety".