1233143040 has 144 divisors (see below), whose sum is σ = 3997965888. Its totient is φ = 323862528.

The previous prime is 1233142979. The next prime is 1233143069. The reversal of 1233143040 is 403413321.

It is a junction number, because it is equal to n+sod(n) for n = 1233142998 and 1233143016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254884 + ... + 259676.

It is an arithmetic number, because the mean of its divisors is an integer number (27763652).

Almost surely, 2^1233143040 is an apocalyptic number.

1233143040 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 1233143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1998982944).

1233143040 is an abundant number, since it is smaller than the sum of its proper divisors (2764822848).

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

1233143040 is an equidigital number, since it uses as much as digits as its factorization.

1233143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884 (or 4870 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1233143040 is about 35116.1364617465. The cubic root of 1233143040 is about 1072.3531175009.

Adding to 1233143040 its reverse (403413321), we get a palindrome (1636556361).

The spelling of 1233143040 in words is "one billion, two hundred thirty-three million, one hundred forty-three thousand, forty".