2049915 has 24 divisors (see below), whose sum is σ = 3816720. Its totient is φ = 936768.

The previous prime is 2049893. The next prime is 2049919. The reversal of 2049915 is 5199402.

It is a happy number.

It is not a de Polignac number, because 2049915 - 2⁷ = 2049787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2049919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 660 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2^2049915 is an apocalyptic number.

2049915 is a deficient number, since it is larger than the sum of its proper divisors (1766805).

2049915 is a wasteful number, since it uses less digits than its factorization.

2049915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811 (or 2804 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2049915 is about 1431.7524227324. The cubic root of 2049915 is about 127.0316535067.

The spelling of 2049915 in words is "two million, forty-nine thousand, nine hundred fifteen".