304257742 has 8 divisors (see below), whose sum is σ = 458908632. Its totient is φ = 151288200.

The previous prime is 304257739. The next prime is 304257781. The reversal of 304257742 is 247752403.

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

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 304257698 and 304257707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419884 + ... + 420607.

It is an arithmetic number, because the mean of its divisors is an integer number (57363579).

Almost surely, 2^304257742 is an apocalyptic number.

304257742 is a deficient number, since it is larger than the sum of its proper divisors (154650890).

304257742 is a wasteful number, since it uses less digits than its factorization.

304257742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840674.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 304257742 is about 17442.9854669434. The cubic root of 304257742 is about 672.5850544938.

The spelling of 304257742 in words is "three hundred four million, two hundred fifty-seven thousand, seven hundred forty-two".