1238619648 has 160 divisors (see below), whose sum is σ = 3849753600. Its totient is φ = 353740800.

The previous prime is 1238619631. The next prime is 1238619649. The reversal of 1238619648 is 8469168321.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1238619597 and 1238619606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238619649) 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 15 ways as a sum of consecutive naturals, for example, 525673 + ... + 528023.

It is an arithmetic number, because the mean of its divisors is an integer number (24060960).

Almost surely, 2^1238619648 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 1238619648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924876800).

1238619648 is an abundant number, since it is smaller than the sum of its proper divisors (2611133952).

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

1238619648 is an frugal number, since it uses more digits than its factorization.

1238619648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393 (or 2363 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1238619648 is about 35194.0285844062. The cubic root of 1238619648 is about 1073.9382769199.

The spelling of 1238619648 in words is "one billion, two hundred thirty-eight million, six hundred nineteen thousand, six hundred forty-eight".