2251869 has 8 divisors (see below), whose sum is σ = 3024960. Its totient is φ = 1490016.

The previous prime is 2251859. The next prime is 2251877. The reversal of 2251869 is 9681522.

2251869 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 2251869 - 2⁷ = 2251741 is a prime.

It is a super-2 number, since 2×2251869² = 10141827986322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251819) 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, 2329 + ... + 3150.

It is an arithmetic number, because the mean of its divisors is an integer number (378120).

2^2251869 is an apocalyptic number.

It is an amenable number.

2251869 is a deficient number, since it is larger than the sum of its proper divisors (773091).

2251869 is a wasteful number, since it uses less digits than its factorization.

2251869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619.

The product of its digits is 8640, while the sum is 33.

The square root of 2251869 is about 1500.6228706774. The cubic root of 2251869 is about 131.0733423774.

The spelling of 2251869 in words is "two million, two hundred fifty-one thousand, eight hundred sixty-nine".