2380905 has 24 divisors (see below), whose sum is σ = 4165512. Its totient is φ = 1257984.

The previous prime is 2380897. The next prime is 2380907. The reversal of 2380905 is 5090832.

It can be written as a sum of positive squares in 4 ways, for example, as 21609 + 2359296 = 147^2 + 1536^2 .

It is not a de Polignac number, because 2380905 - 2³ = 2380897 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2380907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6897 + ... + 7233.

It is an arithmetic number, because the mean of its divisors is an integer number (173563).

2^2380905 is an apocalyptic number.

It is an amenable number.

2380905 is a deficient number, since it is larger than the sum of its proper divisors (1784607).

2380905 is a wasteful number, since it uses less digits than its factorization.

2380905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2380905 is about 1543.0181463612. The cubic root of 2380905 is about 133.5305657404.

The spelling of 2380905 in words is "two million, three hundred eighty thousand, nine hundred five".