304023040 has 80 divisors (see below), whose sum is σ = 736658208. Its totient is φ = 120324096.

The previous prime is 304023023. The next prime is 304023067. The reversal of 304023040 is 40320403.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263104 + ... + 264256.

Almost surely, 2^304023040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368329104).

304023040 is an abundant number, since it is smaller than the sum of its proper divisors (432635168).

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

304023040 is a wasteful number, since it uses less digits than its factorization.

304023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 304023040 is about 17436.2564789579. The cubic root of 304023040 is about 672.4120677538.

Adding to 304023040 its reverse (40320403), we get a palindrome (344343443).

The spelling of 304023040 in words is "three hundred four million, twenty-three thousand, forty".