1057422 has 8 divisors (see below), whose sum is σ = 2114856. Its totient is φ = 352472.

The previous prime is 1057421. The next prime is 1057477. The reversal of 1057422 is 2247501.

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

1057422 is an admirable number.

It is a super-2 number, since 2×1057422² = 2236282572168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88113 + ... + 88124.

It is an arithmetic number, because the mean of its divisors is an integer number (264357).

2^1057422 is an apocalyptic number.

1057422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1057422 is a wasteful number, since it uses less digits than its factorization.

1057422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176242.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 1057422 is about 1028.3102644630. The cubic root of 1057422 is about 101.8785559625.

The spelling of 1057422 in words is "one million, fifty-seven thousand, four hundred twenty-two".