1232546816 has 88 divisors (see below), whose sum is σ = 2617539840. Its totient is φ = 578834432.

The previous prime is 1232546779. The next prime is 1232546837. The reversal of 1232546816 is 6186452321.

It is a self number, because there is not a number n which added to its sum of digits gives 1232546816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1389125 + ... + 1390011.

Almost surely, 2^1232546816 is an apocalyptic number.

1232546816 is a gapful number since it is divisible by the number (16) 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 1232546816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308769920).

1232546816 is an abundant number, since it is smaller than the sum of its proper divisors (1384993024).

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

1232546816 is an equidigital number, since it uses as much as digits as its factorization.

1232546816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 971 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 1232546816 is about 35107.6461187588. The cubic root of 1232546816 is about 1072.1802622533.

The spelling of 1232546816 in words is "one billion, two hundred thirty-two million, five hundred forty-six thousand, eight hundred sixteen".