612700220 has 96 divisors (see below), whose sum is σ = 1541998080. Its totient is φ = 201864960.

The previous prime is 612700219. The next prime is 612700237. The reversal of 612700220 is 22007216.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 612700192 and 612700201.

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, 92954 + ... + 99326.

It is an arithmetic number, because the mean of its divisors is an integer number (16062480).

Almost surely, 2^612700220 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 612700220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770999040).

612700220 is an abundant number, since it is smaller than the sum of its proper divisors (929297860).

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

612700220 is a wasteful number, since it uses less digits than its factorization.

612700220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435 (or 6433 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 612700220 is about 24752.7820658608. The cubic root of 612700220 is about 849.3421530519.

Adding to 612700220 its reverse (22007216), we get a palindrome (634707436).

The spelling of 612700220 in words is "six hundred twelve million, seven hundred thousand, two hundred twenty".