1235540652 has 24 divisors (see below), whose sum is σ = 2900619456. Its totient is φ = 409319568.

The previous prime is 1235540641. The next prime is 1235540659. The reversal of 1235540652 is 2560455321.

It is not an unprimeable number, because it can be changed into a prime (1235540659) 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, 313878 + ... + 317789.

It is an arithmetic number, because the mean of its divisors is an integer number (120859144).

Almost surely, 2^1235540652 is an apocalyptic number.

1235540652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1235540652 is an abundant number, since it is smaller than the sum of its proper divisors (1665078804).

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

1235540652 is a wasteful number, since it uses less digits than its factorization.

1235540652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631837 (or 631835 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 1235540652 is about 35150.2582067330. The cubic root of 1235540652 is about 1073.0476630882.

Adding to 1235540652 its reverse (2560455321), we get a palindrome (3795995973).

The spelling of 1235540652 in words is "one billion, two hundred thirty-five million, five hundred forty thousand, six hundred fifty-two".