1238227830 has 128 divisors (see below), whose sum is σ = 3821875200. Its totient is φ = 279407232.

The previous prime is 1238227811. The next prime is 1238227847. The reversal of 1238227830 is 387228321.

It is a happy number.

1238227830 is a `hidden beast` number, since 1 + 2 + 382 + 278 + 3 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145164 + ... + 153456.

It is an arithmetic number, because the mean of its divisors is an integer number (29858400).

Almost surely, 2^1238227830 is an apocalyptic number.

1238227830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238227830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910937600).

1238227830 is an abundant number, since it is smaller than the sum of its proper divisors (2583647370).

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

1238227830 is a wasteful number, since it uses less digits than its factorization.

1238227830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8395 (or 8389 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1238227830 is about 35188.4616032017. The cubic root of 1238227830 is about 1073.8250237712.

The spelling of 1238227830 in words is "one billion, two hundred thirty-eight million, two hundred twenty-seven thousand, eight hundred thirty".