142242442 has 16 divisors (see below), whose sum is σ = 224275392. Its totient is φ = 67529440.

The previous prime is 142242433. The next prime is 142242461. The reversal of 142242442 is 244242241.

It is a super-2 number, since 2×142242442² = 40465824612246728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4984 + ... + 17587.

It is an arithmetic number, because the mean of its divisors is an integer number (14017212).

Almost surely, 2^142242442 is an apocalyptic number.

142242442 is a deficient number, since it is larger than the sum of its proper divisors (82032950).

142242442 is a wasteful number, since it uses less digits than its factorization.

142242442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22733.

The product of its digits is 4096, while the sum is 25.

The square root of 142242442 is about 11926.5435898252. The cubic root of 142242442 is about 522.0070877817.

Adding to 142242442 its reverse (244242241), we get a palindrome (386484683).

The spelling of 142242442 in words is "one hundred forty-two million, two hundred forty-two thousand, four hundred forty-two".