1242330434 has 4 divisors (see below), whose sum is σ = 1863495654. Its totient is φ = 621165216.

The previous prime is 1242330421. The next prime is 1242330451. The reversal of 1242330434 is 4340332421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4340332421 = 257 ⋅16888453.

It can be written as a sum of positive squares in only one way, i.e., 1242210025 + 120409 = 35245^2 + 347^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310582607 + ... + 310582610.

Almost surely, 2^1242330434 is an apocalyptic number.

1242330434 is a deficient number, since it is larger than the sum of its proper divisors (621165220).

1242330434 is an equidigital number, since it uses as much as digits as its factorization.

1242330434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621165219.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1242330434 is about 35246.7081299800. The cubic root of 1242330434 is about 1075.0096798119.

Adding to 1242330434 its reverse (4340332421), we get a palindrome (5582662855).

The spelling of 1242330434 in words is "one billion, two hundred forty-two million, three hundred thirty thousand, four hundred thirty-four".