5640245 has 16 divisors (see below), whose sum is σ = 7674240. Its totient is φ = 3945024.

The previous prime is 5640211. The next prime is 5640251. The reversal of 5640245 is 5420465.

It is a cyclic number.

It is not a de Polignac number, because 5640245 - 2⁸ = 5639989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049 + ... + 3518.

It is an arithmetic number, because the mean of its divisors is an integer number (479640).

Almost surely, 2^5640245 is an apocalyptic number.

It is an amenable number.

5640245 is a deficient number, since it is larger than the sum of its proper divisors (2033995).

5640245 is a wasteful number, since it uses less digits than its factorization.

5640245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604.

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

The square root of 5640245 is about 2374.9199986526. The cubic root of 5640245 is about 178.0051864836.

It can be divided in two parts, 5640 and 245, that added together give a palindrome (5885).

The spelling of 5640245 in words is "five million, six hundred forty thousand, two hundred forty-five".