1019128908 has 24 divisors (see below), whose sum is σ = 2717677312. Its totient is φ = 291179664.

The previous prime is 1019128879. The next prime is 1019128909. The reversal of 1019128908 is 8098219101.

It is a super-2 number, since 2×1019128908² = 2077247462242544928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1019128909) 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 7 ways as a sum of consecutive naturals, for example, 6066160 + ... + 6066327.

Almost surely, 2^1019128908 is an apocalyptic number.

It is an amenable number.

1019128908 is an abundant number, since it is smaller than the sum of its proper divisors (1698548404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1019128908 is a wasteful number, since it uses less digits than its factorization.

1019128908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132501 (or 12132499 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 39.

The square root of 1019128908 is about 31923.7984582036. The cubic root of 1019128908 is about 1006.3360720685.

The spelling of 1019128908 in words is "one billion, nineteen million, one hundred twenty-eight thousand, nine hundred eight".