1422415 has 4 divisors (see below), whose sum is σ = 1706904. Its totient is φ = 1137928.

The previous prime is 1422409. The next prime is 1422419. The reversal of 1422415 is 5142241.

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 1422415 - 2⁷ = 1422287 is a prime.

It is a Duffinian number.

1422415 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1422392 and 1422401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422419) 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, 142237 + ... + 142246.

It is an arithmetic number, because the mean of its divisors is an integer number (426726).

2^1422415 is an apocalyptic number.

1422415 is a deficient number, since it is larger than the sum of its proper divisors (284489).

1422415 is an equidigital number, since it uses as much as digits as its factorization.

1422415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284488.

The product of its digits is 320, while the sum is 19.

The square root of 1422415 is about 1192.6504098016. The cubic root of 1422415 is about 112.4627695734.

Adding to 1422415 its reverse (5142241), we get a palindrome (6564656).

The spelling of 1422415 in words is "one million, four hundred twenty-two thousand, four hundred fifteen".