612601626 has 96 divisors (see below), whose sum is σ = 1588083840. Its totient is φ = 155965824.

The previous prime is 612601621. The next prime is 612601687. The reversal of 612601626 is 626106216.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 612601593 and 612601602.

It is not an unprimeable number, because it can be changed into a prime (612601621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108075 + ... + 113601.

It is an arithmetic number, because the mean of its divisors is an integer number (16542540).

Almost surely, 2^612601626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612601626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794041920).

612601626 is an abundant number, since it is smaller than the sum of its proper divisors (975482214).

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

612601626 is a wasteful number, since it uses less digits than its factorization.

612601626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588 (or 5581 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 612601626 is about 24750.7904116212. The cubic root of 612601626 is about 849.2965926894.

The spelling of 612601626 in words is "six hundred twelve million, six hundred one thousand, six hundred twenty-six".