1990873352 has 32 divisors (see below), whose sum is σ = 4231617600. Its totient is φ = 870502464.

The previous prime is 1990873331. The next prime is 1990873363. The reversal of 1990873352 is 2533780991.

It is a junction number, because it is equal to n+sod(n) for n = 1990873297 and 1990873306.

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 7 ways as a sum of consecutive naturals, for example, 501788 + ... + 505739.

It is an arithmetic number, because the mean of its divisors is an integer number (132238050).

Almost surely, 2^1990873352 is an apocalyptic number.

It is an amenable number.

1990873352 is an abundant number, since it is smaller than the sum of its proper divisors (2240744248).

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

1990873352 is a wasteful number, since it uses less digits than its factorization.

1990873352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007565 (or 1007561 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 1990873352 is about 44619.2038476708. The cubic root of 1990873352 is about 1258.0016513265.

The spelling of 1990873352 in words is "one billion, nine hundred ninety million, eight hundred seventy-three thousand, three hundred fifty-two".