2235645 has 12 divisors (see below), whose sum is σ = 3875196. Its totient is φ = 1192320.

The previous prime is 2235641. The next prime is 2235647. The reversal of 2235645 is 5465322.

It can be written as a sum of positive squares in 2 ways, for example, as 1279161 + 956484 = 1131^2 + 978^2 .

It is not a de Polignac number, because 2235645 - 2² = 2235641 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 2¹⁸ + 3⁹ + 5⁴ + 6² + 4² + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24796 + ... + 24885.

It is an arithmetic number, because the mean of its divisors is an integer number (322933).

2^2235645 is an apocalyptic number.

It is an amenable number.

2235645 is a deficient number, since it is larger than the sum of its proper divisors (1639551).

2235645 is a wasteful number, since it uses less digits than its factorization.

2235645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49692 (or 49689 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2235645 is about 1495.2073434812. The cubic root of 2235645 is about 130.7578027898.

The spelling of 2235645 in words is "two million, two hundred thirty-five thousand, six hundred forty-five".