1004219979 has 16 divisors (see below), whose sum is σ = 1565828352. Its totient is φ = 560494368.

The previous prime is 1004219891. The next prime is 1004219987. The reversal of 1004219979 is 9799124001.

It is not a de Polignac number, because 1004219979 - 2⁷ = 1004219851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1004219979.

It is not an unprimeable number, because it can be changed into a prime (1004219989) 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, 555144 + ... + 556949.

It is an arithmetic number, because the mean of its divisors is an integer number (97864272).

Almost surely, 2^1004219979 is an apocalyptic number.

1004219979 is a deficient number, since it is larger than the sum of its proper divisors (561608373).

1004219979 is a wasteful number, since it uses less digits than its factorization.

1004219979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112146.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1004219979 is about 31689.4300832312. The cubic root of 1004219979 is about 1001.4046856011.

The spelling of 1004219979 in words is "one billion, four million, two hundred nineteen thousand, nine hundred seventy-nine".