1909231030 has 32 divisors (see below), whose sum is σ = 3929290560. Its totient is φ = 654305280.

The previous prime is 1909231021. The next prime is 1909231033. The reversal of 1909231030 is 301329091.

It is a self number, because there is not a number n which added to its sum of digits gives 1909231030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909231033) 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, 208386 + ... + 217354.

It is an arithmetic number, because the mean of its divisors is an integer number (122790330).

Almost surely, 2^1909231030 is an apocalyptic number.

1909231030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1909231030 is an abundant number, since it is smaller than the sum of its proper divisors (2020059530).

1909231030 is a wasteful number, since it uses less digits than its factorization.

1909231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1909231030 is about 43694.7483114390. The cubic root of 1909231030 is about 1240.5649155952.

The spelling of 1909231030 in words is "one billion, nine hundred nine million, two hundred thirty-one thousand, thirty".