2078045 has 4 divisors (see below), whose sum is σ = 2493660. Its totient is φ = 1662432.

The previous prime is 2078009. The next prime is 2078051. The reversal of 2078045 is 5408702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 611524 + 1466521 = 782^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2078045 - 2¹⁰ = 2077021 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207800 + ... + 207809.

It is an arithmetic number, because the mean of its divisors is an integer number (623415).

2^2078045 is an apocalyptic number.

It is an amenable number.

2078045 is a deficient number, since it is larger than the sum of its proper divisors (415615).

2078045 is an equidigital number, since it uses as much as digits as its factorization.

2078045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415614.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2078045 is about 1441.5425765478. The cubic root of 2078045 is about 127.6100805052.

The spelling of 2078045 in words is "two million, seventy-eight thousand, forty-five".