1223004 has 12 divisors (see below), whose sum is σ = 2853704. Its totient is φ = 407664.

The previous prime is 1223003. The next prime is 1223021. The reversal of 1223004 is 4003221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 101917 = 1223004 / (1 + 2 + 2 + 3 + 0 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223003) 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, 50947 + ... + 50970.

2^1223004 is an apocalyptic number.

It is an amenable number.

1223004 is an abundant number, since it is smaller than the sum of its proper divisors (1630700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223004 is a wasteful number, since it uses less digits than its factorization.

1223004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101924 (or 101922 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1223004 is about 1105.8951125672. The cubic root of 1223004 is about 106.9406023144.

Adding to 1223004 its reverse (4003221), we get a palindrome (5226225).

The spelling of 1223004 in words is "one million, two hundred twenty-three thousand, four".