610216540 has 48 divisors (see below), whose sum is σ = 1366041600. Its totient is φ = 228301632.

The previous prime is 610216517. The next prime is 610216567. The reversal of 610216540 is 45612016.

610216540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 19857 + ... + 40183.

It is an arithmetic number, because the mean of its divisors is an integer number (28459200).

Almost surely, 2^610216540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610216540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683020800).

610216540 is an abundant number, since it is smaller than the sum of its proper divisors (755825060).

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

610216540 is a wasteful number, since it uses less digits than its factorization.

610216540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20434 (or 20432 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 610216540 is about 24702.5614056518. The cubic root of 610216540 is about 848.1929499676.

Adding to 610216540 its reverse (45612016), we get a palindrome (655828556).

The spelling of 610216540 in words is "six hundred ten million, two hundred sixteen thousand, five hundred forty".