304121402 has 16 divisors (see below), whose sum is σ = 497495040. Its totient is φ = 138586032.

The previous prime is 304121393. The next prime is 304121407. The reversal of 304121402 is 204121403.

It is not an unprimeable number, because it can be changed into a prime (304121407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71978 + ... + 76085.

It is an arithmetic number, because the mean of its divisors is an integer number (31093440).

Almost surely, 2^304121402 is an apocalyptic number.

304121402 is a deficient number, since it is larger than the sum of its proper divisors (193373638).

304121402 is a wasteful number, since it uses less digits than its factorization.

304121402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148157.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 304121402 is about 17439.0768677703. The cubic root of 304121402 is about 672.4845761446.

Adding to 304121402 its reverse (204121403), we get a palindrome (508242805).

Subtracting from 304121402 its reverse (204121403), we obtain a palindrome (99999999).

The spelling of 304121402 in words is "three hundred four million, one hundred twenty-one thousand, four hundred two".