1999532230 has 16 divisors (see below), whose sum is σ = 3603926160. Its totient is φ = 798753312.

The previous prime is 1999532201. The next prime is 1999532263. The reversal of 1999532230 is 322359991.

It is a congruent number.

It is an unprimeable number.

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, 124500 + ... + 139639.

It is an arithmetic number, because the mean of its divisors is an integer number (225245385).

Almost surely, 2^1999532230 is an apocalyptic number.

1999532230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1999532230 is a deficient number, since it is larger than the sum of its proper divisors (1604393930).

1999532230 is a wasteful number, since it uses less digits than its factorization.

1999532230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264903.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 1999532230 is about 44716.1294165763. The cubic root of 1999532230 is about 1259.8228166911.

It can be divided in two parts, 19995 and 32230, that added together give a palindrome (52225).

The spelling of 1999532230 in words is "one billion, nine hundred ninety-nine million, five hundred thirty-two thousand, two hundred thirty".