2009950 has 24 divisors (see below), whose sum is σ = 3805560. Its totient is φ = 789600.

The previous prime is 2009923. The next prime is 2009957. The reversal of 2009950 is 599002.

2009950 = T₁₉₃ + T₁₉₄ + ... + T₂₆₇.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2721 + ... + 3379.

It is an arithmetic number, because the mean of its divisors is an integer number (158565).

2^2009950 is an apocalyptic number.

2009950 is a deficient number, since it is larger than the sum of its proper divisors (1795610).

2009950 is a wasteful number, since it uses less digits than its factorization.

2009950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 2009950 is about 1417.7270541257. The cubic root of 2009950 is about 126.2006963644.

The spelling of 2009950 in words is "two million, nine thousand, nine hundred fifty".