20202000 has 320 divisors, whose sum is σ = 82328064. Its totient is φ = 4147200.

The previous prime is 20201983. The next prime is 20202011. The reversal of 20202000 is 20202.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 20202000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 545982 + ... + 546018.

Almost surely, 2^20202000 is an apocalyptic number.

20202000 is a gapful number since it is divisible by the number (20) 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 20202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41164032).

20202000 is an abundant number, since it is smaller than the sum of its proper divisors (62126064).

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

20202000 is a wasteful number, since it uses less digits than its factorization.

20202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 20202000 is about 4494.6635024215. The cubic root of 20202000 is about 272.3525560968.

Adding to 20202000 its reverse (20202), we get a palindrome (20222202).

20202000 divided by its reverse (20202) gives a cube (1000 = 10³).

The spelling of 20202000 in words is "twenty million, two hundred two thousand".