2320945 has 16 divisors (see below), whose sum is σ = 3199680. Its totient is φ = 1598400.

The previous prime is 2320943. The next prime is 2320961. The reversal of 2320945 is 5490232.

It is a happy number.

It is not a de Polignac number, because 2320945 - 2¹ = 2320943 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66 + ... + 2155.

It is an arithmetic number, because the mean of its divisors is an integer number (199980).

2^2320945 is an apocalyptic number.

It is an amenable number.

2320945 is a deficient number, since it is larger than the sum of its proper divisors (878735).

2320945 is a wasteful number, since it uses less digits than its factorization.

2320945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2320945 is about 1523.4648010374. The cubic root of 2320945 is about 132.4000908169.

The spelling of 2320945 in words is "two million, three hundred twenty thousand, nine hundred forty-five".