1223073792 has 168 divisors, whose sum is σ = 3611271924. Its totient is φ = 398721024.

The previous prime is 1223073791. The next prime is 1223073793. The reversal of 1223073792 is 2973703221.

It is an interprime number because it is at equal distance from previous prime (1223073791) and next prime (1223073793).

It can be written as a sum of positive squares in 2 ways, for example, as 1154912256 + 68161536 = 33984^2 + 8256^2 .

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 (1223073791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3907428 + ... + 3907740.

Almost surely, 2^1223073792 is an apocalyptic number.

1223073792 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 1223073792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805635962).

1223073792 is an abundant number, since it is smaller than the sum of its proper divisors (2388198132).

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

1223073792 is an equidigital number, since it uses as much as digits as its factorization.

1223073792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1223073792 is about 34972.4719172094. The cubic root of 1223073792 is about 1069.4263650146.

The spelling of 1223073792 in words is "one billion, two hundred twenty-three million, seventy-three thousand, seven hundred ninety-two".