612219328 has 84 divisors (see below), whose sum is σ = 1425295600. Its totient is φ = 260808576.

The previous prime is 612219323. The next prime is 612219343. The reversal of 612219328 is 823912216.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

612219328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 612219293 and 612219302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612219323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3665901 + ... + 3666067.

Almost surely, 2^612219328 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 612219328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712647800).

612219328 is an abundant number, since it is smaller than the sum of its proper divisors (813076272).

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

612219328 is an frugal number, since it uses more digits than its factorization.

612219328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 176 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 612219328 is about 24743.0662610761. The cubic root of 612219328 is about 849.1198862520.

The spelling of 612219328 in words is "six hundred twelve million, two hundred nineteen thousand, three hundred twenty-eight".