1228538304 has 168 divisors, whose sum is σ = 4101084000. Its totient is φ = 344328192.

The previous prime is 1228538293. The next prime is 1228538317. The reversal of 1228538304 is 4038358221.

It is a tau number, because it is divible by the number of its divisors (168).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210822 + ... + 216570.

Almost surely, 2^1228538304 is an apocalyptic number.

1228538304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228538304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050542000).

1228538304 is an abundant number, since it is smaller than the sum of its proper divisors (2872545696).

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

1228538304 is a wasteful number, since it uses less digits than its factorization.

1228538304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827 (or 5814 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1228538304 is about 35050.5107523414. The cubic root of 1228538304 is about 1071.0166783071.

The spelling of 1228538304 in words is "one billion, two hundred twenty-eight million, five hundred thirty-eight thousand, three hundred four".