5640490 has 8 divisors (see below), whose sum is σ = 10152900. Its totient is φ = 2256192.

The previous prime is 5640463. The next prime is 5640527. The reversal of 5640490 is 940465.

It can be written as a sum of positive squares in 2 ways, for example, as 5349969 + 290521 = 2313^2 + 539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282015 + ... + 282034.

Almost surely, 2^5640490 is an apocalyptic number.

5640490 is a deficient number, since it is larger than the sum of its proper divisors (4512410).

5640490 is a wasteful number, since it uses less digits than its factorization.

5640490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564056.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5640490 is about 2374.9715787773. The cubic root of 5640490 is about 178.0077638326.

The spelling of 5640490 in words is "five million, six hundred forty thousand, four hundred ninety".