304325040 has 80 divisors (see below), whose sum is σ = 945305568. Its totient is φ = 80990208.

The previous prime is 304325023. The next prime is 304325051. The reversal of 304325040 is 40523403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×304325040² = 185227459942003200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304324998 and 304325016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161544 + ... + 163416.

Almost surely, 2^304325040 is an apocalyptic number.

304325040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304325040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472652784).

304325040 is an abundant number, since it is smaller than the sum of its proper divisors (640980528).

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

304325040 is a wasteful number, since it uses less digits than its factorization.

304325040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 304325040 is about 17444.9144451900. The cubic root of 304325040 is about 672.6346399668.

Adding to 304325040 its reverse (40523403), we get a palindrome (344848443).

The spelling of 304325040 in words is "three hundred four million, three hundred twenty-five thousand, forty".