1230240742 has 16 divisors (see below), whose sum is σ = 1882267920. Its totient is φ = 602880768.

The previous prime is 1230240733. The next prime is 1230240757. The reversal of 1230240742 is 2470420321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24298 + ... + 55234.

It is an arithmetic number, because the mean of its divisors is an integer number (117641745).

Almost surely, 2^1230240742 is an apocalyptic number.

1230240742 is a deficient number, since it is larger than the sum of its proper divisors (652027178).

1230240742 is a wasteful number, since it uses less digits than its factorization.

1230240742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31335.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 1230240742 is about 35074.7878397005. The cubic root of 1230240742 is about 1071.5111678175.

The spelling of 1230240742 in words is "one billion, two hundred thirty million, two hundred forty thousand, seven hundred forty-two".