990250441 has 6 divisors (see below), whose sum is σ = 1035177290. Its totient is φ = 947195568.

The previous prime is 990250427. The next prime is 990250447. The reversal of 990250441 is 144052099.

It can be written as a sum of positive squares in only one way, i.e., 768121225 + 222129216 = 27715^2 + 14904^2 .

It is not a de Polignac number, because 990250441 - 2⁹ = 990249929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 990250397 and 990250406.

It is not an unprimeable number, because it can be changed into a prime (990250447) 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 5 ways as a sum of consecutive naturals, for example, 935436 + ... + 936493.

Almost surely, 2^990250441 is an apocalyptic number.

It is an amenable number.

990250441 is a deficient number, since it is larger than the sum of its proper divisors (44926849).

990250441 is a wasteful number, since it uses less digits than its factorization.

990250441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871975 (or 1871952 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 990250441 is about 31468.2449621837. The cubic root of 990250441 is about 996.7395278752.

The spelling of 990250441 in words is "nine hundred ninety million, two hundred fifty thousand, four hundred forty-one".