2020154320 has 20 divisors (see below), whose sum is σ = 4696858980. Its totient is φ = 808061696.

The previous prime is 2020154317. The next prime is 2020154327. The reversal of 2020154320 is 234510202.

It can be written as a sum of positive squares in 2 ways, for example, as 1540719504 + 479434816 = 39252^2 + 21896^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2020154320² = 8162046953229324800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020154327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12625885 + ... + 12626044.

It is an arithmetic number, because the mean of its divisors is an integer number (234842949).

Almost surely, 2^2020154320 is an apocalyptic number.

2020154320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020154320 is an abundant number, since it is smaller than the sum of its proper divisors (2676704660).

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

2020154320 is a wasteful number, since it uses less digits than its factorization.

2020154320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25251942 (or 25251936 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2020154320 is about 44946.1268631681. The cubic root of 2020154320 is about 1264.1390549629.

Adding to 2020154320 its reverse (234510202), we get a palindrome (2254664522).

The spelling of 2020154320 in words is "two billion, twenty million, one hundred fifty-four thousand, three hundred twenty".