1999445202 has 32 divisors (see below), whose sum is σ = 4677067200. Its totient is φ = 631403424.

The previous prime is 1999445197. The next prime is 1999445233. The reversal of 1999445202 is 2025449991.

1999445202 is a `hidden beast` number, since 199 + 9 + 4 + 452 + 0 + 2 = 666.

It is a super-2 number, since 2×1999445202² = 7995562231601641608, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 973363 + ... + 975414.

It is an arithmetic number, because the mean of its divisors is an integer number (146158350).

Almost surely, 2^1999445202 is an apocalyptic number.

1999445202 is an abundant number, since it is smaller than the sum of its proper divisors (2677621998).

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

1999445202 is a wasteful number, since it uses less digits than its factorization.

1999445202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948807 (or 1948801 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1999445202 is about 44715.1562895625. The cubic root of 1999445202 is about 1259.8045388411.

The spelling of 1999445202 in words is "one billion, nine hundred ninety-nine million, four hundred forty-five thousand, two hundred two".