990489941 has 8 divisors (see below), whose sum is σ = 1132697280. Its totient is φ = 848459808.

The previous prime is 990489919. The next prime is 990489947. The reversal of 990489941 is 149984099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 990489941 - 2²⁶ = 923381077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990489947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32096 + ... + 54873.

It is an arithmetic number, because the mean of its divisors is an integer number (141587160).

Almost surely, 2^990489941 is an apocalyptic number.

It is an amenable number.

990489941 is a deficient number, since it is larger than the sum of its proper divisors (142207339).

990489941 is a wasteful number, since it uses less digits than its factorization.

990489941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88603.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 990489941 is about 31472.0501556540. The cubic root of 990489941 is about 996.8198778770.

The spelling of 990489941 in words is "nine hundred ninety million, four hundred eighty-nine thousand, nine hundred forty-one".