2272387 has 4 divisors (see below), whose sum is σ = 2447200. Its totient is φ = 2097576.

The previous prime is 2272379. The next prime is 2272397. The reversal of 2272387 is 7832722.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2272387 - 2³ = 2272379 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 7⁴ + 2²¹ + 3⁸ + 8⁵ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2272337) 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, 87387 + ... + 87412.

It is an arithmetic number, because the mean of its divisors is an integer number (611800).

2^2272387 is an apocalyptic number.

2272387 is a deficient number, since it is larger than the sum of its proper divisors (174813).

2272387 is a wasteful number, since it uses less digits than its factorization.

2272387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174812.

The product of its digits is 9408, while the sum is 31.

The square root of 2272387 is about 1507.4438629680. The cubic root of 2272387 is about 131.4702328204.

The spelling of 2272387 in words is "two million, two hundred seventy-two thousand, three hundred eighty-seven".