1223274052 has 144 divisors (see below), whose sum is σ = 2939618304. Its totient is φ = 432432000.

The previous prime is 1223274047. The next prime is 1223274071. The reversal of 1223274052 is 2504723221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1223274052.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3695527 + ... + 3695857.

It is an arithmetic number, because the mean of its divisors is an integer number (20414016).

Almost surely, 2^1223274052 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 1223274052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469809152).

1223274052 is an abundant number, since it is smaller than the sum of its proper divisors (1716344252).

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

1223274052 is a wasteful number, since it uses less digits than its factorization.

1223274052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 1223274052 is about 34975.3349090470. The cubic root of 1223274052 is about 1069.4847293416.

Adding to 1223274052 its reverse (2504723221), we get a palindrome (3727997273).

The spelling of 1223274052 in words is "one billion, two hundred twenty-three million, two hundred seventy-four thousand, fifty-two".