304042040 has 16 divisors (see below), whose sum is σ = 684094680. Its totient is φ = 121616800.

The previous prime is 304042033. The next prime is 304042043. The reversal of 304042040 is 40240403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304042043) 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, 3800486 + ... + 3800565.

Almost surely, 2^304042040 is an apocalyptic number.

It is an amenable number.

304042040 is an abundant number, since it is smaller than the sum of its proper divisors (380052640).

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

304042040 is a wasteful number, since it uses less digits than its factorization.

304042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7601062 (or 7601058 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 304042040 is about 17436.8013121673. The cubic root of 304042040 is about 672.4260749851.

Adding to 304042040 its reverse (40240403), we get a palindrome (344282443).

The spelling of 304042040 in words is "three hundred four million, forty-two thousand, forty".