613210620 has 96 divisors (see below), whose sum is σ = 1923780096. Its totient is φ = 144633600.

The previous prime is 613210511. The next prime is 613210639. The reversal of 613210620 is 26012316.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11865 + ... + 36975.

It is an arithmetic number, because the mean of its divisors is an integer number (20039376).

Almost surely, 2^613210620 is an apocalyptic number.

613210620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613210620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961890048).

613210620 is an abundant number, since it is smaller than the sum of its proper divisors (1310569476).

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

613210620 is a wasteful number, since it uses less digits than its factorization.

613210620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25171 (or 25169 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 613210620 is about 24763.0898718233. The cubic root of 613210620 is about 849.5779311709.

Adding to 613210620 its reverse (26012316), we get a palindrome (639222936).

The spelling of 613210620 in words is "six hundred thirteen million, two hundred ten thousand, six hundred twenty".