142028630 has 8 divisors (see below), whose sum is σ = 255651552. Its totient is φ = 56811448.

The previous prime is 142028617. The next prime is 142028647. The reversal of 142028630 is 36820241.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142028630.

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, 7101422 + ... + 7101441.

It is an arithmetic number, because the mean of its divisors is an integer number (31956444).

Almost surely, 2^142028630 is an apocalyptic number.

142028630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142028630 is a deficient number, since it is larger than the sum of its proper divisors (113622922).

142028630 is a wasteful number, since it uses less digits than its factorization.

142028630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14202870.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 142028630 is about 11917.5765153826. The cubic root of 142028630 is about 521.7454046357.

Adding to 142028630 its reverse (36820241), we get a palindrome (178848871).

The spelling of 142028630 in words is "one hundred forty-two million, twenty-eight thousand, six hundred thirty".