1235222528 has 88 divisors (see below), whose sum is σ = 2684353920. Its totient is φ = 566231040.

The previous prime is 1235222507. The next prime is 1235222531. The reversal of 1235222528 is 8252225321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1235222494 and 1235222503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39845873 + ... + 39845903.

Almost surely, 2^1235222528 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 1235222528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342176960).

1235222528 is an abundant number, since it is smaller than the sum of its proper divisors (1449131392).

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

1235222528 is an frugal number, since it uses more digits than its factorization.

1235222528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 52 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 1235222528 is about 35145.7327139441. The cubic root of 1235222528 is about 1072.9555599494.

Adding to 1235222528 its reverse (8252225321), we get a palindrome (9487447849).

The spelling of 1235222528 in words is "one billion, two hundred thirty-five million, two hundred twenty-two thousand, five hundred twenty-eight".