2045918 has 16 divisors (see below), whose sum is σ = 3525984. Its totient is φ = 872160.

The previous prime is 2045909. The next prime is 2045929. The reversal of 2045918 is 8195402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4208 + ... + 4668.

It is an arithmetic number, because the mean of its divisors is an integer number (220374).

2^2045918 is an apocalyptic number.

2045918 is a deficient number, since it is larger than the sum of its proper divisors (1480066).

2045918 is a wasteful number, since it uses less digits than its factorization.

2045918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2045918 is about 1430.3558997676. The cubic root of 2045918 is about 126.9490361162.

The spelling of 2045918 in words is "two million, forty-five thousand, nine hundred eighteen".