2045899 has 8 divisors (see below), whose sum is σ = 2183328. Its totient is φ = 1910400.

The previous prime is 2045891. The next prime is 2045903. The reversal of 2045899 is 9985402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2045899 - 2³ = 2045891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169 + ... + 2965.

It is an arithmetic number, because the mean of its divisors is an integer number (272916).

2^2045899 is an apocalyptic number.

2045899 is a deficient number, since it is larger than the sum of its proper divisors (137429).

2045899 is a wasteful number, since it uses less digits than its factorization.

2045899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2045899 is about 1430.3492580485. The cubic root of 2045899 is about 126.9486431322.

The spelling of 2045899 in words is "two million, forty-five thousand, eight hundred ninety-nine".