2445791 has 4 divisors (see below), whose sum is σ = 2491992. Its totient is φ = 2399592.

The previous prime is 2445769. The next prime is 2445799. The reversal of 2445791 is 1975442.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2445791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445799) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23021 + ... + 23126.

It is an arithmetic number, because the mean of its divisors is an integer number (622998).

2^2445791 is an apocalyptic number.

2445791 is a deficient number, since it is larger than the sum of its proper divisors (46201).

2445791 is an equidigital number, since it uses as much as digits as its factorization.

2445791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46200.

The product of its digits is 10080, while the sum is 32.

The square root of 2445791 is about 1563.9024905665. The cubic root of 2445791 is about 134.7327313932.

The spelling of 2445791 in words is "two million, four hundred forty-five thousand, seven hundred ninety-one".