1240143232 has 16 divisors (see below), whose sum is σ = 2470598100. Its totient is φ = 620071552.

The previous prime is 1240143209. The next prime is 1240143253. The reversal of 1240143232 is 2323410421.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4844182 + ... + 4844437.

Almost surely, 2^1240143232 is an apocalyptic number.

It is an amenable number.

1240143232 is a deficient number, since it is larger than the sum of its proper divisors (1230454868).

1240143232 is an frugal number, since it uses more digits than its factorization.

1240143232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9688633 (or 9688621 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240143232 is about 35215.6674223278. The cubic root of 1240143232 is about 1074.3784348392.

Adding to 1240143232 its reverse (2323410421), we get a palindrome (3563553653).

The spelling of 1240143232 in words is "one billion, two hundred forty million, one hundred forty-three thousand, two hundred thirty-two".