619224228 has 144 divisors (see below), whose sum is σ = 1851123456. Its totient is φ = 170876160.

The previous prime is 619224227. The next prime is 619224241. The reversal of 619224228 is 822422916.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 619224192 and 619224201.

It is not an unprimeable number, because it can be changed into a prime (619224227) 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, 947950 + ... + 948602.

It is an arithmetic number, because the mean of its divisors is an integer number (12855024).

Almost surely, 2^619224228 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 619224228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925561728).

619224228 is an abundant number, since it is smaller than the sum of its proper divisors (1231899228).

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

619224228 is a wasteful number, since it uses less digits than its factorization.

619224228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 789 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 619224228 is about 24884.2164433602. The cubic root of 619224228 is about 852.3461035166.

The spelling of 619224228 in words is "six hundred nineteen million, two hundred twenty-four thousand, two hundred twenty-eight".