1235115240 has 32 divisors (see below), whose sum is σ = 3705346080. Its totient is φ = 329364032.

The previous prime is 1235115239. The next prime is 1235115247. The reversal of 1235115240 is 425115321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1235115240.

It is not an unprimeable number, because it can be changed into a prime (1235115247) 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, 5146194 + ... + 5146433.

It is an arithmetic number, because the mean of its divisors is an integer number (115792065).

Almost surely, 2^1235115240 is an apocalyptic number.

1235115240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235115240 is an abundant number, since it is smaller than the sum of its proper divisors (2470230840).

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

1235115240 is a wasteful number, since it uses less digits than its factorization.

1235115240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292641 (or 10292637 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1235115240 is about 35144.2063504072. The cubic root of 1235115240 is about 1072.9244944027.

The spelling of 1235115240 in words is "one billion, two hundred thirty-five million, one hundred fifteen thousand, two hundred forty".