1020654220 has 12 divisors (see below), whose sum is σ = 2143373904. Its totient is φ = 408261680.

The previous prime is 1020654191. The next prime is 1020654221. The reversal of 1020654220 is 224560201.

It is a junction number, because it is equal to n+sod(n) for n = 1020654191 and 1020654200.

It is not an unprimeable number, because it can be changed into a prime (1020654221) by changing a digit.

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, 25516336 + ... + 25516375.

It is an arithmetic number, because the mean of its divisors is an integer number (178614492).

Almost surely, 2^1020654220 is an apocalyptic number.

1020654220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020654220 is an abundant number, since it is smaller than the sum of its proper divisors (1122719684).

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

1020654220 is a wasteful number, since it uses less digits than its factorization.

1020654220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51032720 (or 51032718 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1020654220 is about 31947.6794149434. The cubic root of 1020654220 is about 1006.8378768681.

The spelling of 1020654220 in words is "one billion, twenty million, six hundred fifty-four thousand, two hundred twenty".