1240204432 has 20 divisors (see below), whose sum is σ = 2403557100. Its totient is φ = 619931648.

The previous prime is 1240204429. The next prime is 1240204439. The reversal of 1240204432 is 2344020421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1188594576 + 51609856 = 34476^2 + 7184^2 .

It is not an unprimeable number, because it can be changed into a prime (1240204439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66048 + ... + 82720.

It is an arithmetic number, because the mean of its divisors is an integer number (120177855).

Almost surely, 2^1240204432 is an apocalyptic number.

It is an amenable number.

1240204432 is a deficient number, since it is larger than the sum of its proper divisors (1163352668).

1240204432 is a wasteful number, since it uses less digits than its factorization.

1240204432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21330 (or 21324 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1240204432 is about 35216.5363430307. The cubic root of 1240204432 is about 1074.3961077652.

Adding to 1240204432 its reverse (2344020421), we get a palindrome (3584224853).

The spelling of 1240204432 in words is "one billion, two hundred forty million, two hundred four thousand, four hundred thirty-two".