2265644536 has 32 divisors (see below), whose sum is σ = 4540037040. Its totient is φ = 1056214528.

The previous prime is 2265644533. The next prime is 2265644561. The reversal of 2265644536 is 6354465622.

It is a junction number, because it is equal to n+sod(n) for n = 2265644492 and 2265644501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265644533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63295 + ... + 92398.

Almost surely, 2^2265644536 is an apocalyptic number.

It is an amenable number.

2265644536 is an abundant number, since it is smaller than the sum of its proper divisors (2274392504).

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

2265644536 is a wasteful number, since it uses less digits than its factorization.

2265644536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155823 (or 155819 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The square root of 2265644536 is about 47598.7871274048. The cubic root of 2265644536 is about 1313.4007431595.

The spelling of 2265644536 in words is "two billion, two hundred sixty-five million, six hundred forty-four thousand, five hundred thirty-six".