990252272 has 20 divisors (see below), whose sum is σ = 1920828696.
Its totient is φ = 494554560.
The previous prime is 990252271. The next prime is 990252287. The reversal of 990252272 is 272252099.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (990252271) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21254 + ... + 49317.
Almost surely, 2990252272 is an apocalyptic number.
It is an amenable number.
990252272 is a deficient number, since it is larger than the sum of its proper divisors (930576424).
990252272 is a wasteful number, since it uses less digits than its factorization.
990252272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71456 (or 71450 counting only the distinct ones).
The product of its (nonzero) digits is 45360, while the sum is 38.
The square root of 990252272 is about 31468.2740549907.
The cubic root of 990252272 is about 996.7401422077.
The spelling of 990252272 in words is "nine hundred ninety million, two hundred fifty-two thousand, two hundred seventy-two".