1423216 has 10 divisors (see below), whose sum is σ = 2757512. Its totient is φ = 711600.

The previous prime is 1423193. The next prime is 1423231. The reversal of 1423216 is 6123241.

It is a junction number, because it is equal to n+sod(n) for n = 1423193 and 1423202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44460 + ... + 44491.

2^1423216 is an apocalyptic number.

1423216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1423216 is a deficient number, since it is larger than the sum of its proper divisors (1334296).

1423216 is an equidigital number, since it uses as much as digits as its factorization.

1423216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88959 (or 88953 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 1423216 is about 1192.9861692409. The cubic root of 1423216 is about 112.4838758784.

Adding to 1423216 its reverse (6123241), we get a palindrome (7546457).

The spelling of 1423216 in words is "one million, four hundred twenty-three thousand, two hundred sixteen".