2268945 has 48 divisors (see below), whose sum is σ = 4705920. Its totient is φ = 1037232.

The previous prime is 2268943. The next prime is 2268949. The reversal of 2268945 is 5498622.

It is a happy number.

It is not a de Polignac number, because 2268945 - 2¹ = 2268943 is a prime.

It is a super-2 number, since 2×2268945² = 10296222826050, which contains 22 as substring.

Its product of digits (34560) is a multiple of the sum of its prime divisors (15).

It is not an unprimeable number, because it can be changed into a prime (2268941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324132 + ... + 324138.

It is an arithmetic number, because the mean of its divisors is an integer number (98040).

2^2268945 is an apocalyptic number.

It is an amenable number.

2268945 is an abundant number, since it is smaller than the sum of its proper divisors (2436975).

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

2268945 is an frugal number, since it uses more digits than its factorization.

2268945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 15 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2268945 is about 1506.3017625961. The cubic root of 2268945 is about 131.4038196592.

The spelling of 2268945 in words is "two million, two hundred sixty-eight thousand, nine hundred forty-five".