2456945 has 8 divisors (see below), whose sum is σ = 2958336. Its totient is φ = 1958896.

The previous prime is 2456939. The next prime is 2456963. The reversal of 2456945 is 5496542.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2456945 - 2¹⁴ = 2440561 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 4⁷ + 5⁵ + 6 + 9 + 4⁹ + 5⁷ .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (369792).

2^2456945 is an apocalyptic number.

It is an amenable number.

2456945 is a deficient number, since it is larger than the sum of its proper divisors (501391).

2456945 is a wasteful number, since it uses less digits than its factorization.

2456945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its digits is 43200, while the sum is 35.

The square root of 2456945 is about 1567.4645131549. The cubic root of 2456945 is about 134.9372364856.

The spelling of 2456945 in words is "two million, four hundred fifty-six thousand, nine hundred forty-five".