5210640 has 60 divisors (see below), whose sum is σ = 17501484. Its totient is φ = 1389312.

The previous prime is 5210629. The next prime is 5210651. The reversal of 5210640 is 460125.

It is a happy number.

5210640 is a `hidden beast` number, since 5 + 21 + 0 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (5210629) and next prime (5210651).

It can be written as a sum of positive squares in 2 ways, for example, as 2663424 + 2547216 = 1632^2 + 1596^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2899 + ... + 4338.

Almost surely, 2^5210640 is an apocalyptic number.

It is an amenable number.

5210640 is an abundant number, since it is smaller than the sum of its proper divisors (12290844).

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

5210640 is a wasteful number, since it uses less digits than its factorization.

5210640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7256 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5210640 is about 2282.6826323429. The cubic root of 5210640 is about 173.3659044643.

Adding to 5210640 its reverse (460125), we get a palindrome (5670765).

The spelling of 5210640 in words is "five million, two hundred ten thousand, six hundred forty".