428242142 has 8 divisors (see below), whose sum is σ = 643423296. Its totient is φ = 213767712.

The previous prime is 428242097. The next prime is 428242147. The reversal of 428242142 is 241242824.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428242147) 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, 175163 + ... + 177590.

It is an arithmetic number, because the mean of its divisors is an integer number (80427912).

Almost surely, 2^428242142 is an apocalyptic number.

428242142 is a deficient number, since it is larger than the sum of its proper divisors (215181154).

428242142 is a wasteful number, since it uses less digits than its factorization.

428242142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353362.

The product of its digits is 8192, while the sum is 29.

The square root of 428242142 is about 20694.0122257623. The cubic root of 428242142 is about 753.7542968347.

Adding to 428242142 its reverse (241242824), we get a palindrome (669484966).

The spelling of 428242142 in words is "four hundred twenty-eight million, two hundred forty-two thousand, one hundred forty-two".