1999029264 has 20 divisors (see below), whose sum is σ = 5164159056. Its totient is φ = 666343072.

The previous prime is 1999029233. The next prime is 1999029281. The reversal of 1999029264 is 4629209991.

It is a super-2 number, since 2×1999029264² = 7992235996656763392, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 20823174 + ... + 20823269.

Almost surely, 2^1999029264 is an apocalyptic number.

It is an amenable number.

1999029264 is an abundant number, since it is smaller than the sum of its proper divisors (3165129792).

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

1999029264 is a wasteful number, since it uses less digits than its factorization.

1999029264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41646454 (or 41646448 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 1999029264 is about 44710.5050743111. The cubic root of 1999029264 is about 1259.7171751198.

The spelling of 1999029264 in words is "one billion, nine hundred ninety-nine million, twenty-nine thousand, two hundred sixty-four".