1422427 has 4 divisors (see below), whose sum is σ = 1425816. Its totient is φ = 1419040.

The previous prime is 1422419. The next prime is 1422433. The reversal of 1422427 is 7242241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1422427 - 2³ = 1422419 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422398 and 1422407.

It is not an unprimeable number, because it can be changed into a prime (1422437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (356454).

2^1422427 is an apocalyptic number.

1422427 is a deficient number, since it is larger than the sum of its proper divisors (3389).

1422427 is an equidigital number, since it uses as much as digits as its factorization.

1422427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388.

The product of its digits is 896, while the sum is 22.

The square root of 1422427 is about 1192.6554406030. The cubic root of 1422427 is about 112.4630858312.

Adding to 1422427 its reverse (7242241), we get a palindrome (8664668).

It can be divided in two parts, 1422 and 427, that added together give a square (1849 = 43²).

The spelling of 1422427 in words is "one million, four hundred twenty-two thousand, four hundred twenty-seven".