612842622 has 64 divisors (see below), whose sum is σ = 1517750784. Its totient is φ = 160957440.

The previous prime is 612842591. The next prime is 612842623. The reversal of 612842622 is 226248216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612842623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20722 + ... + 40682.

It is an arithmetic number, because the mean of its divisors is an integer number (23714856).

Almost surely, 2^612842622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612842622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758875392).

612842622 is an abundant number, since it is smaller than the sum of its proper divisors (904908162).

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

612842622 is a wasteful number, since it uses less digits than its factorization.

612842622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20033.

The product of its digits is 18432, while the sum is 33.

The square root of 612842622 is about 24755.6583834888. The cubic root of 612842622 is about 849.4079484977.

The spelling of 612842622 in words is "six hundred twelve million, eight hundred forty-two thousand, six hundred twenty-two".