1233040 has 20 divisors (see below), whose sum is σ = 2867004. Its totient is φ = 493184.

The previous prime is 1233019. The next prime is 1233047. The reversal of 1233040 is 403321.

It can be written as a sum of positive squares in 2 ways, for example, as 781456 + 451584 = 884^2 + 672^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1233040.

It is not an unprimeable number, because it can be changed into a prime (1233047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7627 + ... + 7786.

2^1233040 is an apocalyptic number.

1233040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233040 is an abundant number, since it is smaller than the sum of its proper divisors (1633964).

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

1233040 is a wasteful number, since it uses less digits than its factorization.

1233040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426 (or 15420 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1233040 is about 1110.4233426941. The cubic root of 1233040 is about 107.2323248475.

Adding to 1233040 its reverse (403321), we get a palindrome (1636361).

The spelling of 1233040 in words is "one million, two hundred thirty-three thousand, forty".