2802945 has 16 divisors (see below), whose sum is σ = 4553280. Its totient is φ = 1472064.

The previous prime is 2802931. The next prime is 2802949. The reversal of 2802945 is 5492082.

It is not a de Polignac number, because 2802945 - 2⁴ = 2802929 is a prime.

It is a Curzon number.

2802945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2802949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390 + ... + 2399.

It is an arithmetic number, because the mean of its divisors is an integer number (284580).

2^2802945 is an apocalyptic number.

It is an amenable number.

2802945 is a deficient number, since it is larger than the sum of its proper divisors (1750335).

2802945 is a wasteful number, since it uses less digits than its factorization.

2802945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2802945 is about 1674.1998088639. The cubic root of 2802945 is about 140.9953723143.

The spelling of 2802945 in words is "two million, eight hundred two thousand, nine hundred forty-five".