200215040 has 80 divisors (see below), whose sum is σ = 483698952. Its totient is φ = 79478784.

The previous prime is 200215039. The next prime is 200215049. The reversal of 200215040 is 40512002.

It can be written as a sum of positive squares in 4 ways, for example, as 199600384 + 614656 = 14128^2 + 784^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (200215049) 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, 504122 + ... + 504518.

Almost surely, 2^200215040 is an apocalyptic number.

200215040 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 200215040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241849476).

200215040 is an abundant number, since it is smaller than the sum of its proper divisors (283483912).

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

200215040 is an equidigital number, since it uses as much as digits as its factorization.

200215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 200215040 is about 14149.7363933043. The cubic root of 200215040 is about 585.0130661605.

Adding to 200215040 its reverse (40512002), we get a palindrome (240727042).

The spelling of 200215040 in words is "two hundred million, two hundred fifteen thousand, forty".