2045394 has 24 divisors (see below), whose sum is σ = 4773132. Its totient is φ = 629280.

The previous prime is 2045377. The next prime is 2045437. The reversal of 2045394 is 4935402.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 263169 = 1335^2 + 513^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4137 + ... + 4604.

2^2045394 is an apocalyptic number.

2045394 is an abundant number, since it is smaller than the sum of its proper divisors (2727738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2045394 is a wasteful number, since it uses less digits than its factorization.

2045394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8762 (or 8759 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2045394 is about 1430.1727168423. The cubic root of 2045394 is about 126.9381971391.

The spelling of 2045394 in words is "two million, forty-five thousand, three hundred ninety-four".