82230428 has 144 divisors (see below), whose sum is σ = 196499520. Its totient is φ = 29804544.

The previous prime is 82230427. The next prime is 82230431. The reversal of 82230428 is 82403228.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 82230428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82230427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2222426 + ... + 2222462.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580).

Almost surely, 2^82230428 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 82230428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98249760).

82230428 is an abundant number, since it is smaller than the sum of its proper divisors (114269092).

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

82230428 is a wasteful number, since it uses less digits than its factorization.

82230428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 82230428 is about 9068.0994701205. The cubic root of 82230428 is about 434.8547152113.

The spelling of 82230428 in words is "eighty-two million, two hundred thirty thousand, four hundred twenty-eight".