633201990 has 32 divisors (see below), whose sum is σ = 1530627840. Its totient is φ = 167637984.

The previous prime is 633201973. The next prime is 633202013. The reversal of 633201990 is 99102336.

It is a congruent number.

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, 71754 + ... + 80093.

It is an arithmetic number, because the mean of its divisors is an integer number (47832120).

Almost surely, 2^633201990 is an apocalyptic number.

633201990 is an abundant number, since it is smaller than the sum of its proper divisors (897425850).

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

633201990 is a wasteful number, since it uses less digits than its factorization.

633201990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151996.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 633201990 is about 25163.5051215048. The cubic root of 633201990 is about 858.7117859381.

The spelling of 633201990 in words is "six hundred thirty-three million, two hundred one thousand, nine hundred ninety".