990244433 has 2 divisors, whose sum is σ = 990244434. Its totient is φ = 990244432.

The previous prime is 990244429. The next prime is 990244483. The reversal of 990244433 is 334442099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990235024 + 9409 = 31468^2 + 97^2 .

It is a cyclic number.

It is not a de Polignac number, because 990244433 - 2² = 990244429 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (990244483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495122216 + 495122217.

It is an arithmetic number, because the mean of its divisors is an integer number (495122217).

Almost surely, 2^990244433 is an apocalyptic number.

It is an amenable number.

990244433 is a deficient number, since it is larger than the sum of its proper divisors (1).

990244433 is an equidigital number, since it uses as much as digits as its factorization.

990244433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 990244433 is about 31468.1495007253. The cubic root of 990244433 is about 996.7375120810.

The spelling of 990244433 in words is "nine hundred ninety million, two hundred forty-four thousand, four hundred thirty-three".