200740290 has 32 divisors (see below), whose sum is σ = 492030720. Its totient is φ = 52391424.

The previous prime is 200740289. The next prime is 200740313. The reversal of 200740290 is 92047002.

It is a self number, because there is not a number n which added to its sum of digits gives 200740290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69775 + ... + 72594.

It is an arithmetic number, because the mean of its divisors is an integer number (15375960).

Almost surely, 2^200740290 is an apocalyptic number.

200740290 is an abundant number, since it is smaller than the sum of its proper divisors (291290430).

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

200740290 is a wasteful number, since it uses less digits than its factorization.

200740290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142426.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 200740290 is about 14168.2846527023. The cubic root of 200740290 is about 585.5241995840.

Adding to 200740290 its reverse (92047002), we get a palindrome (292787292).

The spelling of 200740290 in words is "two hundred million, seven hundred forty thousand, two hundred ninety".