1223969052 has 24 divisors (see below), whose sum is σ = 2873033856. Its totient is φ = 405545968.

The previous prime is 1223969039. The next prime is 1223969053. The reversal of 1223969052 is 2509693221.

It is a self number, because there is not a number n which added to its sum of digits gives 1223969052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223969053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303378 + ... + 307385.

It is an arithmetic number, because the mean of its divisors is an integer number (119709744).

Almost surely, 2^1223969052 is an apocalyptic number.

1223969052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223969052 is an abundant number, since it is smaller than the sum of its proper divisors (1649064804).

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

1223969052 is a wasteful number, since it uses less digits than its factorization.

1223969052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610937 (or 610935 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1223969052 is about 34985.2690714249. The cubic root of 1223969052 is about 1069.6872326600.

The spelling of 1223969052 in words is "one billion, two hundred twenty-three million, nine hundred sixty-nine thousand, fifty-two".