2428791 has 8 divisors (see below), whose sum is σ = 3326064. Its totient is φ = 1575360.

The previous prime is 2428787. The next prime is 2428859. The reversal of 2428791 is 1978242.

It is a happy number.

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

It is not a de Polignac number, because 2428791 - 2² = 2428787 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.

2428791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2428711) 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 7 ways as a sum of consecutive naturals, for example, 10830 + ... + 11051.

It is an arithmetic number, because the mean of its divisors is an integer number (415758).

2^2428791 is an apocalyptic number.

2428791 is a deficient number, since it is larger than the sum of its proper divisors (897273).

2428791 is a wasteful number, since it uses less digits than its factorization.

2428791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21921.

The product of its digits is 8064, while the sum is 33.

The square root of 2428791 is about 1558.4578916352. The cubic root of 2428791 is about 134.4198423262.

The spelling of 2428791 in words is "two million, four hundred twenty-eight thousand, seven hundred ninety-one".