2273520 has 40 divisors (see below), whose sum is σ = 7048656. Its totient is φ = 606208.

The previous prime is 2273507. The next prime is 2273533. The reversal of 2273520 is 253722.

It is an interprime number because it is at equal distance from previous prime (2273507) and next prime (2273533).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4497 + ... + 4976.

2^2273520 is an apocalyptic number.

2273520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273520 is an abundant number, since it is smaller than the sum of its proper divisors (4775136).

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

2273520 is a wasteful number, since it uses less digits than its factorization.

2273520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9489 (or 9483 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 2273520 is about 1507.8196178588. The cubic root of 2273520 is about 131.4920793082.

The spelling of 2273520 in words is "two million, two hundred seventy-three thousand, five hundred twenty".