2045798 has 4 divisors (see below), whose sum is σ = 3068700. Its totient is φ = 1022898.

The previous prime is 2045789. The next prime is 2045819. The reversal of 2045798 is 8975402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511448 + ... + 511451.

It is an arithmetic number, because the mean of its divisors is an integer number (767175).

2^2045798 is an apocalyptic number.

2045798 is a deficient number, since it is larger than the sum of its proper divisors (1022902).

2045798 is a wasteful number, since it uses less digits than its factorization.

2045798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022901.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2045798 is about 1430.3139515505. The cubic root of 2045798 is about 126.9465540711.

The spelling of 2045798 in words is "two million, forty-five thousand, seven hundred ninety-eight".