1999132008 has 16 divisors (see below), whose sum is σ = 4997830080. Its totient is φ = 666377328.

The previous prime is 1999132001. The next prime is 1999132043. The reversal of 1999132008 is 8002319991.

It is a super-2 number, since 2×1999132008² = 7993057570820224128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1999132001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41648560 + ... + 41648607.

It is an arithmetic number, because the mean of its divisors is an integer number (312364380).

Almost surely, 2^1999132008 is an apocalyptic number.

It is an amenable number.

1999132008 is an abundant number, since it is smaller than the sum of its proper divisors (2998698072).

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

1999132008 is a wasteful number, since it uses less digits than its factorization.

1999132008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83297176 (or 83297172 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 1999132008 is about 44711.6540512650. The cubic root of 1999132008 is about 1259.7387566222.

The spelling of 1999132008 in words is "one billion, nine hundred ninety-nine million, one hundred thirty-two thousand, eight".