1240401652 has 12 divisors (see below), whose sum is σ = 2480803360. Its totient is φ = 531600696.

The previous prime is 1240401649. The next prime is 1240401683. The reversal of 1240401652 is 2561040421.

It is a happy number.

1240401652 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22150002 + ... + 22150057.

Almost surely, 2^1240401652 is an apocalyptic number.

It is an amenable number.

1240401652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1240401652 is a wasteful number, since it uses less digits than its factorization.

1240401652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44300070 (or 44300068 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1240401652 is about 35219.3363367341. The cubic root of 1240401652 is about 1074.4530556801.

The spelling of 1240401652 in words is "one billion, two hundred forty million, four hundred one thousand, six hundred fifty-two".