1240042402304 has 20 divisors (see below), whose sum is σ = 2477662847814. Its totient is φ = 620021200896.

The previous prime is 1240042402303. The next prime is 1240042402337. The reversal of 1240042402304 is 4032042400421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1237077817600 + 2964584704 = 1112240^2 + 54448^2 .

It is not an unprimeable number, because it can be changed into a prime (1240042402301) by changing a digit.

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, 1210978397 + ... + 1210979420.

Almost surely, 2^{1240042402304} is an apocalyptic number.

It is an amenable number.

1240042402304 is a deficient number, since it is larger than the sum of its proper divisors (1237620445510).

1240042402304 is an frugal number, since it uses more digits than its factorization.

1240042402304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421957835 (or 2421957819 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 1240042402304 its reverse (4032042400421), we get a palindrome (5272084802725).

The spelling of 1240042402304 in words is "one trillion, two hundred forty billion, forty-two million, four hundred two thousand, three hundred four".