1233240240 has 80 divisors (see below), whose sum is σ = 3830254848. Its totient is φ = 328243968.

The previous prime is 1233240221. The next prime is 1233240241. The reversal of 1233240240 is 420423321.

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

It is not an unprimeable number, because it can be changed into a prime (1233240241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130557 + ... + 139683.

Almost surely, 2^1233240240 is an apocalyptic number.

1233240240 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 1233240240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915127424).

1233240240 is an abundant number, since it is smaller than the sum of its proper divisors (2597014608).

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

1233240240 is a wasteful number, since it uses less digits than its factorization.

1233240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9706 (or 9700 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1233240240 is about 35117.5204136055. The cubic root of 1233240240 is about 1072.3812921141.

Adding to 1233240240 its reverse (420423321), we get a palindrome (1653663561).

The spelling of 1233240240 in words is "one billion, two hundred thirty-three million, two hundred forty thousand, two hundred forty".