1240835652 has 96 divisors (see below), whose sum is σ = 3686457600. Its totient is φ = 353569536.

The previous prime is 1240835633. The next prime is 1240835653. The reversal of 1240835652 is 2565380421.

1240835652 is a `hidden beast` number, since 12 + 4 + 0 + 83 + 565 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1240835653) 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, 307198 + ... + 311210.

It is an arithmetic number, because the mean of its divisors is an integer number (38400600).

Almost surely, 2^1240835652 is an apocalyptic number.

1240835652 is a gapful number since it is divisible by the number (12) 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 1240835652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843228800).

1240835652 is an abundant number, since it is smaller than the sum of its proper divisors (2445621948).

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

1240835652 is a wasteful number, since it uses less digits than its factorization.

1240835652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442 (or 4434 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1240835652 is about 35225.4971859873. The cubic root of 1240835652 is about 1074.5783533342.

The spelling of 1240835652 in words is "one billion, two hundred forty million, eight hundred thirty-five thousand, six hundred fifty-two".