2645745 has 8 divisors (see below), whose sum is σ = 4233216. Its totient is φ = 1411056.

The previous prime is 2645743. The next prime is 2645749. The reversal of 2645745 is 5475462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2645745 - 2¹ = 2645743 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 6⁷ + 4⁴ + 5⁵ + 7 + 4⁹ + 5⁵ .

It is not an unprimeable number, because it can be changed into a prime (2645743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88177 + ... + 88206.

It is an arithmetic number, because the mean of its divisors is an integer number (529152).

2^2645745 is an apocalyptic number.

It is an amenable number.

2645745 is a deficient number, since it is larger than the sum of its proper divisors (1587471).

2645745 is a wasteful number, since it uses less digits than its factorization.

2645745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176391.

The product of its digits is 33600, while the sum is 33.

The square root of 2645745 is about 1626.5746217128. The cubic root of 2645745 is about 138.3086454548.

The spelling of 2645745 in words is "two million, six hundred forty-five thousand, seven hundred forty-five".