1020063620 has 12 divisors (see below), whose sum is σ = 2142133644. Its totient is φ = 408025440.

The previous prime is 1020063613. The next prime is 1020063643. The reversal of 1020063620 is 263600201.

1020063620 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 553849156 + 466214464 = 23534^2 + 21592^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 51003181 = 1020063620 / (1 + 0 + 2 + 0 + 0 + 6 + 3 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1020063592 and 1020063601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25501571 + ... + 25501610.

It is an arithmetic number, because the mean of its divisors is an integer number (178511137).

Almost surely, 2^1020063620 is an apocalyptic number.

1020063620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020063620 is an abundant number, since it is smaller than the sum of its proper divisors (1122070024).

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

1020063620 is a wasteful number, since it uses less digits than its factorization.

1020063620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51003190 (or 51003188 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1020063620 is about 31938.4348395472. The cubic root of 1020063620 is about 1006.6436376664.

Adding to 1020063620 its reverse (263600201), we get a palindrome (1283663821).

The spelling of 1020063620 in words is "one billion, twenty million, sixty-three thousand, six hundred twenty".