1233011440 has 40 divisors (see below), whose sum is σ = 2868307488. Its totient is φ = 492936960.

The previous prime is 1233011419. The next prime is 1233011443. The reversal of 1233011440 is 441103321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1233011440² = 3040634422341747200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233011443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216469 + ... + 222091.

Almost surely, 2^1233011440 is an apocalyptic number.

1233011440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233011440 is an abundant number, since it is smaller than the sum of its proper divisors (1635296048).

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

1233011440 is a wasteful number, since it uses less digits than its factorization.

1233011440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8377 (or 8371 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1233011440 is about 35114.2626293078. The cubic root of 1233011440 is about 1072.3149692661.

Adding to 1233011440 its reverse (441103321), we get a palindrome (1674114761).

The spelling of 1233011440 in words is "one billion, two hundred thirty-three million, eleven thousand, four hundred forty".