5645240 has 16 divisors (see below), whose sum is σ = 12701880. Its totient is φ = 2258080.

The previous prime is 5645239. The next prime is 5645243. The reversal of 5645240 is 425465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70526 + ... + 70605.

Almost surely, 2^5645240 is an apocalyptic number.

It is an amenable number.

5645240 is an abundant number, since it is smaller than the sum of its proper divisors (7056640).

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

5645240 is a wasteful number, since it uses less digits than its factorization.

5645240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141142 (or 141138 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5645240 is about 2375.9713802990. The cubic root of 5645240 is about 178.0577181001.

It can be divided in two parts, 5645 and 240, that added together give a palindrome (5885).

The spelling of 5645240 in words is "five million, six hundred forty-five thousand, two hundred forty".