1422057 has 16 divisors (see below), whose sum is σ = 2334080. Its totient is φ = 749952.

The previous prime is 1422023. The next prime is 1422061. The reversal of 1422057 is 7502241.

It is not a de Polignac number, because 1422057 - 2⁸ = 1421801 is a prime.

It is a super-2 number, since 2×1422057² = 4044492222498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is the 1193-rd Hogben number.

1422057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1422007) by changing a digit.

It is a nontrivial repunit in base 1192.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2332 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (145880).

2^1422057 is an apocalyptic number.

It is an amenable number.

1422057 is a deficient number, since it is larger than the sum of its proper divisors (912023).

1422057 is a wasteful number, since it uses less digits than its factorization.

1422057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232.

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

The square root of 1422057 is about 1192.5003144654. The cubic root of 1422057 is about 112.4533337314.

Adding to 1422057 its reverse (7502241), we get a palindrome (8924298).

The spelling of 1422057 in words is "one million, four hundred twenty-two thousand, fifty-seven".