1242040334 has 4 divisors (see below), whose sum is σ = 1863060504. Its totient is φ = 621020166.

The previous prime is 1242040259. The next prime is 1242040351. The reversal of 1242040334 is 4330402421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4330402421 = 1669 ⋅2594609.

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, 310510082 + ... + 310510085.

It is an arithmetic number, because the mean of its divisors is an integer number (465765126).

Almost surely, 2^1242040334 is an apocalyptic number.

1242040334 is a deficient number, since it is larger than the sum of its proper divisors (621020170).

1242040334 is an equidigital number, since it uses as much as digits as its factorization.

1242040334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621020169.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1242040334 is about 35242.5926117816. The cubic root of 1242040334 is about 1074.9259971412.

Adding to 1242040334 its reverse (4330402421), we get a palindrome (5572442755).

The spelling of 1242040334 in words is "one billion, two hundred forty-two million, forty thousand, three hundred thirty-four".