304211142 has 24 divisors (see below), whose sum is σ = 664961544. Its totient is φ = 100505664.

The previous prime is 304211137. The next prime is 304211161. The reversal of 304211142 is 241112403.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72748 + ... + 76815.

It is an arithmetic number, because the mean of its divisors is an integer number (27706731).

Almost surely, 2^304211142 is an apocalyptic number.

304211142 is an abundant number, since it is smaller than the sum of its proper divisors (360750402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304211142 is a wasteful number, since it uses less digits than its factorization.

304211142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149684 (or 149681 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 304211142 is about 17441.6496352839. The cubic root of 304211142 is about 672.5507151169.

Adding to 304211142 its reverse (241112403), we get a palindrome (545323545).

The spelling of 304211142 in words is "three hundred four million, two hundred eleven thousand, one hundred forty-two".