1999948 has 12 divisors (see below), whose sum is σ = 3705912. Its totient is φ = 941120.

The previous prime is 1999891. The next prime is 1999957. The reversal of 1999948 is 8499991.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14638 + ... + 14773.

It is an arithmetic number, because the mean of its divisors is an integer number (308826).

2^1999948 is an apocalyptic number.

It is an amenable number.

1999948 is a deficient number, since it is larger than the sum of its proper divisors (1705964).

1999948 is a wasteful number, since it uses less digits than its factorization.

1999948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29432 (or 29430 counting only the distinct ones).

The product of its digits is 209952, while the sum is 49.

The square root of 1999948 is about 1414.1951774773. The cubic root of 1999948 is about 125.9910130484.

It can be divided in two parts, 199994 and 8, that added together give a palindrome (200002).

The spelling of 1999948 in words is "one million, nine hundred ninety-nine thousand, nine hundred forty-eight".