287629142 has 8 divisors (see below), whose sum is σ = 432242832. Its totient is φ = 143548200.

The previous prime is 287629141. The next prime is 287629151. The reversal of 287629142 is 241926782.

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

It is a self number, because there is not a number n which added to its sum of digits gives 287629142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287629141) 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, 131834 + ... + 133997.

It is an arithmetic number, because the mean of its divisors is an integer number (54030354).

Almost surely, 2^287629142 is an apocalyptic number.

287629142 is a deficient number, since it is larger than the sum of its proper divisors (144613690).

287629142 is a wasteful number, since it uses less digits than its factorization.

287629142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266374.

The product of its digits is 96768, while the sum is 41.

The square root of 287629142 is about 16959.6327200798. The cubic root of 287629142 is about 660.1018682677.

The spelling of 287629142 in words is "two hundred eighty-seven million, six hundred twenty-nine thousand, one hundred forty-two".