1224036 has 54 divisors (see below), whose sum is σ = 3413046. Its totient is φ = 369600.

The previous prime is 1224031. The next prime is 1224053. The reversal of 1224036 is 6304221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1115136 + 108900 = 1056^2 + 330^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1224031) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4216 + ... + 4496.

2^1224036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706523).

1224036 is an abundant number, since it is smaller than the sum of its proper divisors (2189010).

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

1224036 is a wasteful number, since it uses less digits than its factorization.

1224036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1224036 is about 1106.3616045399. The cubic root of 1224036 is about 106.9706735363.

Adding to 1224036 its reverse (6304221), we get a palindrome (7528257).

The spelling of 1224036 in words is "one million, two hundred twenty-four thousand, thirty-six".