2020203240 has 64 divisors (see below), whose sum is σ = 6611578560. Its totient is φ = 489745920.

The previous prime is 2020203193. The next prime is 2020203271. The reversal of 2020203240 is 423020202.

It is a super-2 number, since 2×2020203240² = 8162442261812995200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 763909 + ... + 766548.

It is an arithmetic number, because the mean of its divisors is an integer number (103305915).

Almost surely, 2^2020203240 is an apocalyptic number.

2020203240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020203240 is an abundant number, since it is smaller than the sum of its proper divisors (4591375320).

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

2020203240 is a wasteful number, since it uses less digits than its factorization.

2020203240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530482 (or 1530478 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2020203240 is about 44946.6710669433. The cubic root of 2020203240 is about 1264.1492589991.

Adding to 2020203240 its reverse (423020202), we get a palindrome (2443223442).

The spelling of 2020203240 in words is "two billion, twenty million, two hundred three thousand, two hundred forty".