1223796672 has 168 divisors, whose sum is σ = 4138647552. Its totient is φ = 338342400.

The previous prime is 1223796653. The next prime is 1223796689. The reversal of 1223796672 is 2766973221.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120097 + ... + 129887.

Almost surely, 2^1223796672 is an apocalyptic number.

1223796672 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 1223796672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2069323776).

1223796672 is an abundant number, since it is smaller than the sum of its proper divisors (2914850880).

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

1223796672 is a wasteful number, since it uses less digits than its factorization.

1223796672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9847 (or 9834 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 1223796672 is about 34982.8053763560. The cubic root of 1223796672 is about 1069.6370131598.

The spelling of 1223796672 in words is "one billion, two hundred twenty-three million, seven hundred ninety-six thousand, six hundred seventy-two".