2099950 has 12 divisors (see below), whose sum is σ = 3906000. Its totient is φ = 839960.

The previous prime is 2099941. The next prime is 2099963. The reversal of 2099950 is 599902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20950 + ... + 21049.

It is an arithmetic number, because the mean of its divisors is an integer number (325500).

2^2099950 is an apocalyptic number.

2099950 is a deficient number, since it is larger than the sum of its proper divisors (1806050).

2099950 is a wasteful number, since it uses less digits than its factorization.

2099950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42011 (or 42006 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 2099950 is about 1449.1204228773. The cubic root of 2099950 is about 128.0569001580.

It can be divided in two parts, 20 and 99950, that multiplied together give a triangular number (1999000 = T₁₉₉₉).

The spelling of 2099950 in words is "two million, ninety-nine thousand, nine hundred fifty".