304040432 has 20 divisors (see below), whose sum is σ = 620083080. Its totient is φ = 144019008.

The previous prime is 304040423. The next prime is 304040441. The reversal of 304040432 is 234040403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (304040423) and next prime (304040441).

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 499763 + ... + 500370.

It is an arithmetic number, because the mean of its divisors is an integer number (31004154).

Almost surely, 2^304040432 is an apocalyptic number.

It is an amenable number.

304040432 is an abundant number, since it is smaller than the sum of its proper divisors (316042648).

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

304040432 is a wasteful number, since it uses less digits than its factorization.

304040432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000160 (or 1000154 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 304040432 is about 17436.7552027320. The cubic root of 304040432 is about 672.4248895536.

Adding to 304040432 its reverse (234040403), we get a palindrome (538080835).

The spelling of 304040432 in words is "three hundred four million, forty thousand, four hundred thirty-two".