2273140 has 12 divisors (see below), whose sum is σ = 4773636. Its totient is φ = 909248.

The previous prime is 2273119. The next prime is 2273143. The reversal of 2273140 is 413722.

It can be written as a sum of positive squares in 2 ways, for example, as 1430416 + 842724 = 1196^2 + 918^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273143) 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, 56809 + ... + 56848.

It is an arithmetic number, because the mean of its divisors is an integer number (397803).

2^2273140 is an apocalyptic number.

2273140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273140 is an abundant number, since it is smaller than the sum of its proper divisors (2500496).

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

2273140 is a wasteful number, since it uses less digits than its factorization.

2273140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113666 (or 113664 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2273140 is about 1507.6936028252. The cubic root of 2273140 is about 131.4847529634.

Adding to 2273140 its reverse (413722), we get a palindrome (2686862).

The spelling of 2273140 in words is "two million, two hundred seventy-three thousand, one hundred forty".