1142421442 has 8 divisors (see below), whose sum is σ = 1725133500. Its totient is φ = 567376944.

The previous prime is 1142421439. The next prime is 1142421443. The reversal of 1142421442 is 2441242411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1029190561 + 113230881 = 32081^2 + 10641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1142421442² = 2610253502282718728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142421443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916517 + ... + 1917112.

Almost surely, 2^1142421442 is an apocalyptic number.

1142421442 is a deficient number, since it is larger than the sum of its proper divisors (582712058).

1142421442 is a wasteful number, since it uses less digits than its factorization.

1142421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833780.

The product of its digits is 2048, while the sum is 25.

The square root of 1142421442 is about 33799.7254722579. The cubic root of 1142421442 is about 1045.3830367088.

Adding to 1142421442 its reverse (2441242411), we get a palindrome (3583663853).

The spelling of 1142421442 in words is "one billion, one hundred forty-two million, four hundred twenty-one thousand, four hundred forty-two".