1016890449 has 16 divisors (see below), whose sum is σ = 1402245120. Its totient is φ = 655097040.

The previous prime is 1016890447. The next prime is 1016890451. The reversal of 1016890449 is 9440986101.

It is an interprime number because it is at equal distance from previous prime (1016890447) and next prime (1016890451).

It is not a de Polignac number, because 1016890449 - 2¹ = 1016890447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1016890449.

It is not an unprimeable number, because it can be changed into a prime (1016890447) 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 15 ways as a sum of consecutive naturals, for example, 34507 + ... + 56784.

It is an arithmetic number, because the mean of its divisors is an integer number (87640320).

Almost surely, 2^1016890449 is an apocalyptic number.

It is an amenable number.

1016890449 is a deficient number, since it is larger than the sum of its proper divisors (385354671).

1016890449 is an equidigital number, since it uses as much as digits as its factorization.

1016890449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91420.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1016890449 is about 31888.7197767486. The cubic root of 1016890449 is about 1005.5987452193.

The spelling of 1016890449 in words is "one billion, sixteen million, eight hundred ninety thousand, four hundred forty-nine".