304406073 has 16 divisors (see below), whose sum is σ = 461461440. Its totient is φ = 198217152.

The previous prime is 304406057. The next prime is 304406101. The reversal of 304406073 is 370604403.

It is not a de Polignac number, because 304406073 - 2⁴ = 304406057 is a prime.

It is a super-3 number, since 3×304406073³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (304406873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129936 + ... + 132257.

It is an arithmetic number, because the mean of its divisors is an integer number (28841340).

Almost surely, 2^304406073 is an apocalyptic number.

It is an amenable number.

304406073 is a deficient number, since it is larger than the sum of its proper divisors (157055367).

304406073 is a wasteful number, since it uses less digits than its factorization.

304406073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262245 (or 262239 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 304406073 is about 17447.2368299396. The cubic root of 304406073 is about 672.6943357510.

The spelling of 304406073 in words is "three hundred four million, four hundred six thousand, seventy-three".