2251422 has 32 divisors (see below), whose sum is σ = 5052960. Its totient is φ = 743040.

The previous prime is 2251411. The next prime is 2251423. The reversal of 2251422 is 2241522.

2251422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2251395 and 2251404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251423) 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 15 ways as a sum of consecutive naturals, for example, 9222 + ... + 9462.

It is an arithmetic number, because the mean of its divisors is an integer number (157905).

2^2251422 is an apocalyptic number.

2251422 is an abundant number, since it is smaller than the sum of its proper divisors (2801538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251422 is a wasteful number, since it uses less digits than its factorization.

2251422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2251422 is about 1500.4739251317. The cubic root of 2251422 is about 131.0646690397.

Adding to 2251422 its reverse (2241522), we get a palindrome (4492944).

The spelling of 2251422 in words is "two million, two hundred fifty-one thousand, four hundred twenty-two".