200040820 has 24 divisors (see below), whose sum is σ = 480098304. Its totient is φ = 68585376.

The previous prime is 200040817. The next prime is 200040829. The reversal of 200040820 is 28040002.

It is a junction number, because it is equal to n+sod(n) for n = 200040794 and 200040803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200040829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714292 + ... + 714571.

It is an arithmetic number, because the mean of its divisors is an integer number (20004096).

Almost surely, 2^200040820 is an apocalyptic number.

200040820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200040820 is an abundant number, since it is smaller than the sum of its proper divisors (280057484).

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

200040820 is a wasteful number, since it uses less digits than its factorization.

200040820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428879 (or 1428877 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 200040820 is about 14143.5787550393. The cubic root of 200040820 is about 584.8433310708.

Adding to 200040820 its reverse (28040002), we get a palindrome (228080822).

The spelling of 200040820 in words is "two hundred million, forty thousand, eight hundred twenty".