1232001040 has 80 divisors (see below), whose sum is σ = 3031056000. Its totient is φ = 464403456.

The previous prime is 1232001031. The next prime is 1232001047. The reversal of 1232001040 is 401002321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1232001040² = 3035653125122163200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1232001040.

It is not an unprimeable number, because it can be changed into a prime (1232001047) 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 15 ways as a sum of consecutive naturals, for example, 300444 + ... + 304516.

It is an arithmetic number, because the mean of its divisors is an integer number (37888200).

Almost surely, 2^1232001040 is an apocalyptic number.

1232001040 is a gapful number since it is divisible by the number (10) 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 1232001040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515528000).

1232001040 is an abundant number, since it is smaller than the sum of its proper divisors (1799054960).

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

1232001040 is a wasteful number, since it uses less digits than its factorization.

1232001040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1232001040 is about 35099.8723644403. The cubic root of 1232001040 is about 1072.0219838441.

Adding to 1232001040 its reverse (401002321), we get a palindrome (1633003361).

The spelling of 1232001040 in words is "one billion, two hundred thirty-two million, one thousand, forty".