1421334242 has 4 divisors (see below), whose sum is σ = 2132001366. Its totient is φ = 710667120.

The previous prime is 1421334209. The next prime is 1421334253. The reversal of 1421334242 is 2424331241.

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

It can be written as a sum of positive squares in only one way, i.e., 869601121 + 551733121 = 29489^2 + 23489^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355333559 + ... + 355333562.

Almost surely, 2^1421334242 is an apocalyptic number.

1421334242 is a deficient number, since it is larger than the sum of its proper divisors (710667124).

1421334242 is an equidigital number, since it uses as much as digits as its factorization.

1421334242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710667123.

The product of its digits is 4608, while the sum is 26.

The square root of 1421334242 is about 37700.5867593596. The cubic root of 1421334242 is about 1124.3427909903.

Adding to 1421334242 its reverse (2424331241), we get a palindrome (3845665483).

The spelling of 1421334242 in words is "one billion, four hundred twenty-one million, three hundred thirty-four thousand, two hundred forty-two".