1230424042 has 4 divisors (see below), whose sum is σ = 1845636066. Its totient is φ = 615212020.

The previous prime is 1230424033. The next prime is 1230424051. The reversal of 1230424042 is 2404240321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1230424033) and next prime (1230424051).

It can be written as a sum of positive squares in only one way, i.e., 1211666481 + 18757561 = 34809^2 + 4331^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307606009 + ... + 307606012.

Almost surely, 2^1230424042 is an apocalyptic number.

1230424042 is a deficient number, since it is larger than the sum of its proper divisors (615212024).

1230424042 is an equidigital number, since it uses as much as digits as its factorization.

1230424042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615212023.

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

The square root of 1230424042 is about 35077.4007303848. The cubic root of 1230424042 is about 1071.5643818583.

Adding to 1230424042 its reverse (2404240321), we get a palindrome (3634664363).

The spelling of 1230424042 in words is "one billion, two hundred thirty million, four hundred twenty-four thousand, forty-two".