300490989 has 16 divisors (see below), whose sum is σ = 406950912. Its totient is φ = 197203248.

The previous prime is 300490987. The next prime is 300490991. The reversal of 300490989 is 989094003.

It is an interprime number because it is at equal distance from previous prime (300490987) and next prime (300490991).

It is not a de Polignac number, because 300490989 - 2¹ = 300490987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 300490989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300490987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49452 + ... + 55194.

It is an arithmetic number, because the mean of its divisors is an integer number (25434432).

Almost surely, 2^300490989 is an apocalyptic number.

It is an amenable number.

300490989 is a deficient number, since it is larger than the sum of its proper divisors (106459923).

300490989 is a wasteful number, since it uses less digits than its factorization.

300490989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 300490989 is about 17334.6759127478. The cubic root of 300490989 is about 669.7979557112.

The spelling of 300490989 in words is "three hundred million, four hundred ninety thousand, nine hundred eighty-nine".