999481049 has 16 divisors (see below), whose sum is σ = 1165836672. Its totient is φ = 839075328.

The previous prime is 999481039. The next prime is 999481069. The reversal of 999481049 is 940184999.

It is not a de Polignac number, because 999481049 - 2¹⁶ = 999415513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (999481019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247682 + ... + 251684.

It is an arithmetic number, because the mean of its divisors is an integer number (72864792).

Almost surely, 2^999481049 is an apocalyptic number.

It is an amenable number.

999481049 is a deficient number, since it is larger than the sum of its proper divisors (166355623).

999481049 is a wasteful number, since it uses less digits than its factorization.

999481049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736.

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

The square root of 999481049 is about 31614.5702010956. The cubic root of 999481049 is about 999.8269864014.

The spelling of 999481049 in words is "nine hundred ninety-nine million, four hundred eighty-one thousand, forty-nine".