1048138620 has 96 divisors (see below), whose sum is σ = 3003506688. Its totient is φ = 273030912.

The previous prime is 1048138607. The next prime is 1048138669. The reversal of 1048138620 is 268318401.

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 31 ways as a sum of consecutive naturals, for example, 509514 + ... + 511566.

It is an arithmetic number, because the mean of its divisors is an integer number (31286528).

Almost surely, 2^1048138620 is an apocalyptic number.

1048138620 is a gapful number since it is divisible by the number (10) 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 1048138620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501753344).

1048138620 is an abundant number, since it is smaller than the sum of its proper divisors (1955368068).

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

1048138620 is a wasteful number, since it uses less digits than its factorization.

1048138620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2257 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1048138620 is about 32374.9690347342. The cubic root of 1048138620 is about 1015.7953984328.

The spelling of 1048138620 in words is "one billion, forty-eight million, one hundred thirty-eight thousand, six hundred twenty".