142404742 has 8 divisors (see below), whose sum is σ = 214241976. Its totient is φ = 70990752.

The previous prime is 142404727. The next prime is 142404763. The reversal of 142404742 is 247404241.

142404742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×142404742² = 40558221088173128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142404742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104968 + ... + 106315.

It is an arithmetic number, because the mean of its divisors is an integer number (26780247).

Almost surely, 2^142404742 is an apocalyptic number.

142404742 is a deficient number, since it is larger than the sum of its proper divisors (71837234).

142404742 is a wasteful number, since it uses less digits than its factorization.

142404742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211622.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 142404742 is about 11933.3458007384. The cubic root of 142404742 is about 522.2055506942.

Adding to 142404742 its reverse (247404241), we get a palindrome (389808983).

The spelling of 142404742 in words is "one hundred forty-two million, four hundred four thousand, seven hundred forty-two".