1223671752 has 64 divisors (see below), whose sum is σ = 3406200000. Its totient is φ = 407037312.

The previous prime is 1223671727. The next prime is 1223671753. The reversal of 1223671752 is 2571763221.

1223671752 is a `hidden beast` number, since 122 + 367 + 175 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1223671753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102108 + ... + 113460.

It is an arithmetic number, because the mean of its divisors is an integer number (53221875).

Almost surely, 2^1223671752 is an apocalyptic number.

1223671752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223671752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703100000).

1223671752 is an abundant number, since it is smaller than the sum of its proper divisors (2182528248).

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

1223671752 is a wasteful number, since it uses less digits than its factorization.

1223671752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11867 (or 11857 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 1223671752 is about 34981.0198822161. The cubic root of 1223671752 is about 1069.6006172439.

The spelling of 1223671752 in words is "one billion, two hundred twenty-three million, six hundred seventy-one thousand, seven hundred fifty-two".