1963020100 has 72 divisors (see below), whose sum is σ = 4454589888. Its totient is φ = 749443200.

The previous prime is 1963020097. The next prime is 1963020109. The reversal of 1963020100 is 10203691.

It is not an unprimeable number, because it can be changed into a prime (1963020109) 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 23 ways as a sum of consecutive naturals, for example, 2085630 + ... + 2086570.

It is an arithmetic number, because the mean of its divisors is an integer number (61869304).

Almost surely, 2^1963020100 is an apocalyptic number.

1963020100 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 1963020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2227294944).

1963020100 is an abundant number, since it is smaller than the sum of its proper divisors (2491569788).

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

1963020100 is a wasteful number, since it uses less digits than its factorization.

1963020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1963020100 is about 44305.9826660012. The cubic root of 1963020100 is about 1252.1073997630.

Adding to 1963020100 its reverse (10203691), we get a palindrome (1973223791).

The spelling of 1963020100 in words is "one billion, nine hundred sixty-three million, twenty thousand, one hundred".