2289520 has 20 divisors (see below), whose sum is σ = 5323320. Its totient is φ = 915776.

The previous prime is 2289503. The next prime is 2289571. The reversal of 2289520 is 259822.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14230 + ... + 14389.

It is an arithmetic number, because the mean of its divisors is an integer number (266166).

2^2289520 is an apocalyptic number.

2289520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2289520 is an abundant number, since it is smaller than the sum of its proper divisors (3033800).

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

2289520 is a wasteful number, since it uses less digits than its factorization.

2289520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28632 (or 28626 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2289520 is about 1513.1159902664. The cubic root of 2289520 is about 131.7998190109.

It can be divided in two parts, 2289 and 520, that added together give a square (2809 = 53²).

The spelling of 2289520 in words is "two million, two hundred eighty-nine thousand, five hundred twenty".