1019240812 has 24 divisors (see below), whose sum is σ = 1858162320. Its totient is φ = 488759040.

The previous prime is 1019240809. The next prime is 1019240821. The reversal of 1019240812 is 2180429101.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42993 + ... + 62344.

It is an arithmetic number, because the mean of its divisors is an integer number (77423430).

Almost surely, 2^1019240812 is an apocalyptic number.

It is an amenable number.

1019240812 is a deficient number, since it is larger than the sum of its proper divisors (838921508).

1019240812 is a wasteful number, since it uses less digits than its factorization.

1019240812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105441 (or 105439 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1019240812 is about 31925.5510837323. The cubic root of 1019240812 is about 1006.3729038207.

Adding to 1019240812 its reverse (2180429101), we get a palindrome (3199669913).

The spelling of 1019240812 in words is "one billion, nineteen million, two hundred forty thousand, eight hundred twelve".