2645457 has 8 divisors (see below), whose sum is σ = 3542880. Its totient is φ = 1755840.

The previous prime is 2645453. The next prime is 2645477. The reversal of 2645457 is 7545462.

2645457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2645457 - 2² = 2645453 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2645453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107 + ... + 2552.

It is an arithmetic number, because the mean of its divisors is an integer number (442860).

2^2645457 is an apocalyptic number.

It is an amenable number.

2645457 is a deficient number, since it is larger than the sum of its proper divisors (897423).

2645457 is a wasteful number, since it uses less digits than its factorization.

2645457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903.

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

The square root of 2645457 is about 1626.4860897038. The cubic root of 2645457 is about 138.3036267883.

The spelling of 2645457 in words is "two million, six hundred forty-five thousand, four hundred fifty-seven".