1233012040 has 128 divisors (see below), whose sum is σ = 3197063520. Its totient is φ = 423936000.

The previous prime is 1233012007. The next prime is 1233012041. The reversal of 1233012040 is 402103321.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 330730596 + 902281444 = 18186^2 + 30038^2 .

It is not an unprimeable number, because it can be changed into a prime (1233012041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 892150 + ... + 893530.

Almost surely, 2^1233012040 is an apocalyptic number.

1233012040 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 1233012040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598531760).

1233012040 is an abundant number, since it is smaller than the sum of its proper divisors (1964051480).

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

1233012040 is a wasteful number, since it uses less digits than its factorization.

1233012040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1233012040 is about 35114.2711728437. The cubic root of 1233012040 is about 1072.3151432004.

Adding to 1233012040 its reverse (402103321), we get a palindrome (1635115361).

The spelling of 1233012040 in words is "one billion, two hundred thirty-three million, twelve thousand, forty".