304690 has 8 divisors (see below), whose sum is σ = 548460. Its totient is φ = 121872.

The previous prime is 304687. The next prime is 304709. The reversal of 304690 is 96403.

It can be written as a sum of positive squares in 2 ways, for example, as 303601 + 1089 = 551^2 + 33^2 .

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

It is a super-2 number, since 2×304690² = 185671992200, which contains 22 as substring.

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, 15225 + ... + 15244.

2³⁰⁴⁶⁹⁰ is an apocalyptic number.

304690 is a deficient number, since it is larger than the sum of its proper divisors (243770).

304690 is a wasteful number, since it uses less digits than its factorization.

304690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30476.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 304690 is about 551.9873186949. The cubic root of 304690 is about 67.2903416920.

It can be divided in two parts, 3046 and 90, that added together give a square (3136 = 56²).

The spelling of 304690 in words is "three hundred four thousand, six hundred ninety".