1242758324 has 6 divisors (see below), whose sum is σ = 2174827074. Its totient is φ = 621379160.

The previous prime is 1242758311. The next prime is 1242758347. The reversal of 1242758324 is 4238572421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1061586724 + 181171600 = 32582^2 + 13460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155344787 + ... + 155344794.

It is an arithmetic number, because the mean of its divisors is an integer number (362471179).

Almost surely, 2^1242758324 is an apocalyptic number.

It is an amenable number.

1242758324 is a deficient number, since it is larger than the sum of its proper divisors (932068750).

1242758324 is a wasteful number, since it uses less digits than its factorization.

1242758324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310689585 (or 310689583 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 1242758324 is about 35252.7775359616. Note that the first 3 decimals coincide. The cubic root of 1242758324 is about 1075.1330858127.

The spelling of 1242758324 in words is "one billion, two hundred forty-two million, seven hundred fifty-eight thousand, three hundred twenty-four".