1048641620 has 54 divisors (see below), whose sum is σ = 2388862602. Its totient is φ = 386495616.

The previous prime is 1048641613. The next prime is 1048641637. The reversal of 1048641620 is 261468401.

It can be written as a sum of positive squares in 9 ways, for example, as 993258256 + 55383364 = 31516^2 + 7442^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1882382 + ... + 1882938.

Almost surely, 2^1048641620 is an apocalyptic number.

1048641620 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 1048641620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194431301).

1048641620 is an abundant number, since it is smaller than the sum of its proper divisors (1340220982).

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

1048641620 is an equidigital number, since it uses as much as digits as its factorization.

1048641620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1048641620 is about 32382.7364501520. The cubic root of 1048641620 is about 1015.9578652934.

The spelling of 1048641620 in words is "one billion, forty-eight million, six hundred forty-one thousand, six hundred twenty".