1949228582 has 32 divisors (see below), whose sum is σ = 3527539200. Its totient is φ = 789136128.

The previous prime is 1949228581. The next prime is 1949228597. The reversal of 1949228582 is 2858229491.

It is a self number, because there is not a number n which added to its sum of digits gives 1949228582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949228581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83519 + ... + 104277.

It is an arithmetic number, because the mean of its divisors is an integer number (110235600).

Almost surely, 2^1949228582 is an apocalyptic number.

1949228582 is a deficient number, since it is larger than the sum of its proper divisors (1578310618).

1949228582 is a wasteful number, since it uses less digits than its factorization.

1949228582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21140.

The product of its digits is 829440, while the sum is 50.

The square root of 1949228582 is about 44150.0688787685. The cubic root of 1949228582 is about 1249.1682107841.

Subtracting 1949228582 from its reverse (2858229491), we obtain a palindrome (909000909).

The spelling of 1949228582 in words is "one billion, nine hundred forty-nine million, two hundred twenty-eight thousand, five hundred eighty-two".