1222403 has 24 divisors (see below), whose sum is σ = 1627920. Its totient is φ = 907200.

The previous prime is 1222393. The next prime is 1222409. The reversal of 1222403 is 3042221.

1222403 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 1222403 - 2¹⁰ = 1221379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12053 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (67830).

2^1222403 is an apocalyptic number.

1222403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222403 is a deficient number, since it is larger than the sum of its proper divisors (405517).

1222403 is a wasteful number, since it uses less digits than its factorization.

1222403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1222403 is about 1105.6233535884. The cubic root of 1222403 is about 106.9230821121.

Adding to 1222403 its reverse (3042221), we get a palindrome (4264624).

The spelling of 1222403 in words is "one million, two hundred twenty-two thousand, four hundred three".